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#1
posted to rec.boats.cruising
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Lavac marine head
http://www.lavac.com/
I found the website of the really great marine head installed on a racing trimaran that's visiting Charleston this week. After struggling with those cheap plastic crappers from Waste Marine all clogging and sticking plastic valves and the damned pumps that you have to keep greased....THAT STINK.... If you've never seen this toilet, or used it, or flushed it, look out for it.... The model installed on this spartan trimaran is the simplest thing I've ever seen. The seawater seacock through the hull is right behind it and there is a water loop with an anti-siphon U in the top of it because in this boat the toilet is far below the waterline and would flood the hull otherwise. There's NO PUMP, NO PARTS, NOTHING MOVING in the head, itself! The head is simply plumbed with plastic bilge pump hose to a regular Whale diaphram bilge pump surface mounted high on the bulkhead behind and to the side of it so you don't bump your head while seated. The outlet of the pump goes into the Y-valve to select sanitary tankage or overboard discharge. After the pump, it's the same old sewer system any boat has....way too small to hold much for long. You have two choices to flush.... Leave the seat OPEN and it merely pumps out whatever's in the bowl until it sucks air....LOTS OF AIR! That diaphram pump isn't that crappy little plastic pump on the head you have now...and it works SO EASY WITH SUCH A SHORT LIFTING HOSE...ABOUT 3' so the pump is ABOVE the waterline and can't backfill the boat if one of its valves is stuck open. If you want to use up your fresh water to flush with the shower head, this allows it just fine. Leave the seat CLOSED and it's a full-blown, self-flushing vacuum toilet because the seat seals to the toilet and the lid seals to the seat VERY TIGHTLY WITH A SOFT PLASTIC SEAL ON BOTH ON THE BOTTOMS. You hear a sound that sounds like one of those tankless gas station toilets flushing when you pull the big handle on the 1" water line that feeds them! This puppy flushes HARD on that much vacuum from the Whale pump! Running on 1 atmosphere of PRESSURE, 14 PSI, I don't think ANYTHING that can be sucked down that tube could EVER clog it up! Now the important part......IT SAYS SUCKED SHUT VERY TIGHTLY AFTER THE FLUSHING STOPS! The suction comes from an intake valve that won't let the toilet flow go backwards towards the seacock. As this valve, which must be a simple flapper, is on the seawater side, nothing in the toilet will clog it up and with this much pressure I cannot imagine anything from the sea stopping it from opening. To flush you need only close the lid and make TWO pumps on the Whale. Now SEALED, the toilet CANNOT SMELL UP THE BOAT! God, where was this when I used to have to stand watch downwind from the stinky heads in cruising boats?! |
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#2
posted to rec.boats.cruising
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Lavac marine head
"Larry" wrote in message ... http://www.lavac.com/ I found the website of the really great marine head installed on a racing trimaran that's visiting Charleston this week. After struggling with those cheap plastic crappers from Waste Marine all clogging and sticking plastic valves and the damned pumps that you have to keep greased....THAT STINK.... If you've never seen this toilet, or used it, or flushed it, look out for it.... The model installed on this spartan trimaran is the simplest thing I've ever seen. The seawater seacock through the hull is right behind it and there is a water loop with an anti-siphon U in the top of it because in this boat the toilet is far below the waterline and would flood the hull otherwise. There's NO PUMP, NO PARTS, NOTHING MOVING in the head, itself! The head is simply plumbed with plastic bilge pump hose to a regular Whale diaphram bilge pump surface mounted high on the bulkhead behind and to the side of it so you don't bump your head while seated. The outlet of the pump goes into the Y-valve to select sanitary tankage or overboard discharge. After the pump, it's the same old sewer system any boat has....way too small to hold much for long. You have two choices to flush.... Leave the seat OPEN and it merely pumps out whatever's in the bowl until it sucks air....LOTS OF AIR! That diaphram pump isn't that crappy little plastic pump on the head you have now...and it works SO EASY WITH SUCH A SHORT LIFTING HOSE...ABOUT 3' so the pump is ABOVE the waterline and can't backfill the boat if one of its valves is stuck open. If you want to use up your fresh water to flush with the shower head, this allows it just fine. Leave the seat CLOSED and it's a full-blown, self-flushing vacuum toilet because the seat seals to the toilet and the lid seals to the seat VERY TIGHTLY WITH A SOFT PLASTIC SEAL ON BOTH ON THE BOTTOMS. You hear a sound that sounds like one of those tankless gas station toilets flushing when you pull the big handle on the 1" water line that feeds them! This puppy flushes HARD on that much vacuum from the Whale pump! Running on 1 atmosphere of PRESSURE, 14 PSI, I don't think ANYTHING that can be sucked down that tube could EVER clog it up! Now the important part......IT SAYS SUCKED SHUT VERY TIGHTLY AFTER THE FLUSHING STOPS! The suction comes from an intake valve that won't let the toilet flow go backwards towards the seacock. As this valve, which must be a simple flapper, is on the seawater side, nothing in the toilet will clog it up and with this much pressure I cannot imagine anything from the sea stopping it from opening. To flush you need only close the lid and make TWO pumps on the Whale. Now SEALED, the toilet CANNOT SMELL UP THE BOAT! God, where was this when I used to have to stand watch downwind from the stinky heads in cruising boats?! Yes, Larry, I had one in a previous boat and it is just like you say but a very big disadvantage is that if there is a queue for the heads the next person is going to find the lid securely vacuumed shut until it slowly leaks its vacuum away and that takes some time. .. Sometimes people get so frustrated that they heave the lid up and then find that the sealing ring has pulled out of its groove and has to be pressed back in before it can be used again. Not always a nice job on a head that many people have used in rough sea conditions!!! |
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#3
posted to rec.boats.cruising
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Lavac marine head
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#4
posted to rec.boats.cruising
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Lavac marine head
Larry wrote:
http://www.lavac.com/ I found the website of the really great marine head installed on a racing trimaran that's visiting Charleston this week. You actually found the website for the US distributor. Lavac marine toilets are made by Blakes a UK mfr whose marine toilets are considered the best in the world: http://www.blakes-lavac-taylors.co.uk/index.htm The Lavac has long been a favorite of live-aboard blue water cruisers for decades...and In the days when most of the people here were live-aboard cruisers, you'd prob'ly have been the last person here to discover it. The Lavac has never become very popular in the US among "weekend warriors" for two reasons: very limited parts availability and price--$350-$400 depending on the rate of exchange...plus, it's a bit intimidating to small children and landlubber guests compared ot pumping a piston-cylinder pump. -- Peggie ---------- Peggie Hall Specializing in marine sanitation since 1987 Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and Other Sources of Aggravation and Odor" http://shop.sailboatowners.com/boat_odors/ |
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#5
posted to rec.boats.cruising
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Lavac marine head
"Larry" wrote in message ... http://www.lavac.com/ I found the website of the really great marine head installed on a racing trimaran that's visiting Charleston this week. After struggling with those cheap plastic crappers from Waste Marine all clogging and sticking plastic valves and the damned pumps that you have to keep greased....THAT STINK.... If you've never seen this toilet, or used it, or flushed it, look out for it.... The model installed on this spartan trimaran is the simplest thing I've ever seen. The seawater seacock through the hull is right behind it and there is a water loop with an anti-siphon U in the top of it because in this boat the toilet is far below the waterline and would flood the hull otherwise. There's NO PUMP, NO PARTS, NOTHING MOVING in the head, itself! The head is simply plumbed with plastic bilge pump hose to a regular Whale diaphram bilge pump surface mounted high on the bulkhead behind and to the side of it so you don't bump your head while seated. The outlet of the pump goes into the Y-valve to select sanitary tankage or overboard discharge. After the pump, it's the same old sewer system any boat has....way too small to hold much for long. You have two choices to flush.... Leave the seat OPEN and it merely pumps out whatever's in the bowl until it sucks air....LOTS OF AIR! That diaphram pump isn't that crappy little plastic pump on the head you have now...and it works SO EASY WITH SUCH A SHORT LIFTING HOSE...ABOUT 3' so the pump is ABOVE the waterline and can't backfill the boat if one of its valves is stuck open. If you want to use up your fresh water to flush with the shower head, this allows it just fine. Leave the seat CLOSED and it's a full-blown, self-flushing vacuum toilet because the seat seals to the toilet and the lid seals to the seat VERY TIGHTLY WITH A SOFT PLASTIC SEAL ON BOTH ON THE BOTTOMS. You hear a sound that sounds like one of those tankless gas station toilets flushing when you pull the big handle on the 1" water line that feeds them! This puppy flushes HARD on that much vacuum from the Whale pump! Running on 1 atmosphere of PRESSURE, 14 PSI, I don't think ANYTHING that can be sucked down that tube could EVER clog it up! Now the important part......IT SAYS SUCKED SHUT VERY TIGHTLY AFTER THE FLUSHING STOPS! The suction comes from an intake valve that won't let the toilet flow go backwards towards the seacock. As this valve, which must be a simple flapper, is on the seawater side, nothing in the toilet will clog it up and with this much pressure I cannot imagine anything from the sea stopping it from opening. To flush you need only close the lid and make TWO pumps on the Whale. Now SEALED, the toilet CANNOT SMELL UP THE BOAT! God, where was this when I used to have to stand watch downwind from the stinky heads in cruising boats?! Way too much trouble and expense when the following does the job better in every way: http://store.vernondeon.com/index.ph...&ID=17&PID=428 Only $8.95 plus shipping. Wilbur Hubbard |
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#6
posted to rec.boats.cruising
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Lavac marine head
"Wilbur Hubbard" wrote in message anews.com... "Larry" wrote in message ... http://www.lavac.com/ I found the website of the really great marine head installed on a racing trimaran that's visiting Charleston this week. After struggling with those cheap plastic crappers from Waste Marine all clogging and sticking plastic valves and the damned pumps that you have to keep greased....THAT STINK.... If you've never seen this toilet, or used it, or flushed it, look out for it.... The model installed on this spartan trimaran is the simplest thing I've ever seen. The seawater seacock through the hull is right behind it and there is a water loop with an anti-siphon U in the top of it because in this boat the toilet is far below the waterline and would flood the hull otherwise. There's NO PUMP, NO PARTS, NOTHING MOVING in the head, itself! The head is simply plumbed with plastic bilge pump hose to a regular Whale diaphram bilge pump surface mounted high on the bulkhead behind and to the side of it so you don't bump your head while seated. The outlet of the pump goes into the Y-valve to select sanitary tankage or overboard discharge. After the pump, it's the same old sewer system any boat has....way too small to hold much for long. You have two choices to flush.... Leave the seat OPEN and it merely pumps out whatever's in the bowl until it sucks air....LOTS OF AIR! That diaphram pump isn't that crappy little plastic pump on the head you have now...and it works SO EASY WITH SUCH A SHORT LIFTING HOSE...ABOUT 3' so the pump is ABOVE the waterline and can't backfill the boat if one of its valves is stuck open. If you want to use up your fresh water to flush with the shower head, this allows it just fine. Leave the seat CLOSED and it's a full-blown, self-flushing vacuum toilet because the seat seals to the toilet and the lid seals to the seat VERY TIGHTLY WITH A SOFT PLASTIC SEAL ON BOTH ON THE BOTTOMS. You hear a sound that sounds like one of those tankless gas station toilets flushing when you pull the big handle on the 1" water line that feeds them! This puppy flushes HARD on that much vacuum from the Whale pump! Running on 1 atmosphere of PRESSURE, 14 PSI, I don't think ANYTHING that can be sucked down that tube could EVER clog it up! Now the important part......IT SAYS SUCKED SHUT VERY TIGHTLY AFTER THE FLUSHING STOPS! The suction comes from an intake valve that won't let the toilet flow go backwards towards the seacock. As this valve, which must be a simple flapper, is on the seawater side, nothing in the toilet will clog it up and with this much pressure I cannot imagine anything from the sea stopping it from opening. To flush you need only close the lid and make TWO pumps on the Whale. Now SEALED, the toilet CANNOT SMELL UP THE BOAT! God, where was this when I used to have to stand watch downwind from the stinky heads in cruising boats?! Way too much trouble and expense when the following does the job better in every way: http://store.vernondeon.com/index.ph...&ID=17&PID=428 Only $8.95 plus shipping. Wilbur Hubbard We can buy 'em for 99p in the uk. That's probably what the vendor on this website pays for them. We're in the wrong business! Dennis. |
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#7
posted to rec.boats.cruising
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Lavac marine head
"Larry" wrote:
I found the website of the really great marine head installed on a racing trimaran that's visiting Charleston this week. Your basic Lavac from Blakes in the UK. Available in US from Defenders and Brendens Isle, in Florida, started by Tom O'mera many years ago. Uses basic Henerson MKV pump (Waste waater version of Whale 10). Small pin hole in incoming vacuum line eliminates "stuck seat" problem after using. (Design per Tom O.) Next question. Lew |
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#8
posted to rec.boats.cruising
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Lavac marine head
Dennis Pogson wrote:
"Wilbur Hubbard" wrote in message anews.com... "Larry" wrote in message ... http://www.lavac.com/ I found the website of the really great marine head installed on a racing trimaran that's visiting Charleston this week. After struggling with those cheap plastic crappers from Waste Marine all clogging and sticking plastic valves and the damned pumps that you have to keep greased....THAT STINK.... If you've never seen this toilet, or used it, or flushed it, look out for it.... The model installed on this spartan trimaran is the simplest thing I've ever seen. The seawater seacock through the hull is right behind it and there is a water loop with an anti-siphon U in the top of it because in this boat the toilet is far below the waterline and would flood the hull otherwise. There's NO PUMP, NO PARTS, NOTHING MOVING in the head, itself! The head is simply plumbed with plastic bilge pump hose to a regular Whale diaphram bilge pump surface mounted high on the bulkhead behind and to the side of it so you don't bump your head while seated. The outlet of the pump goes into the Y-valve to select sanitary tankage or overboard discharge. After the pump, it's the same old sewer system any boat has....way too small to hold much for long. You have two choices to flush.... Leave the seat OPEN and it merely pumps out whatever's in the bowl until it sucks air....LOTS OF AIR! That diaphram pump isn't that crappy little plastic pump on the head you have now...and it works SO EASY WITH SUCH A SHORT LIFTING HOSE...ABOUT 3' so the pump is ABOVE the waterline and can't backfill the boat if one of its valves is stuck open. If you want to use up your fresh water to flush with the shower head, this allows it just fine. Leave the seat CLOSED and it's a full-blown, self-flushing vacuum toilet because the seat seals to the toilet and the lid seals to the seat VERY TIGHTLY WITH A SOFT PLASTIC SEAL ON BOTH ON THE BOTTOMS. You hear a sound that sounds like one of those tankless gas station toilets flushing when you pull the big handle on the 1" water line that feeds them! This puppy flushes HARD on that much vacuum from the Whale pump! Running on 1 atmosphere of PRESSURE, 14 PSI, I don't think ANYTHING that can be sucked down that tube could EVER clog it up! Now the important part......IT SAYS SUCKED SHUT VERY TIGHTLY AFTER THE FLUSHING STOPS! The suction comes from an intake valve that won't let the toilet flow go backwards towards the seacock. As this valve, which must be a simple flapper, is on the seawater side, nothing in the toilet will clog it up and with this much pressure I cannot imagine anything from the sea stopping it from opening. To flush you need only close the lid and make TWO pumps on the Whale. Now SEALED, the toilet CANNOT SMELL UP THE BOAT! God, where was this when I used to have to stand watch downwind from the stinky heads in cruising boats?! Way too much trouble and expense when the following does the job better in every way: http://store.vernondeon.com/index.ph...&ID=17&PID=428 Only $8.95 plus shipping. Wilbur Hubbard We can buy 'em for 99p in the uk. That's probably what the vendor on this website pays for them. We're in the wrong business! Dennis. Send me a dozen, heck a gross. Thanks, |
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#9
posted to rec.boats.cruising
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Lavac marine head
Edgar wrote:
"Larry" wrote in message ... http://www.lavac.com/ I found the website of the really great marine head installed on a racing trimaran that's visiting Charleston this week. After struggling with those cheap plastic crappers from Waste Marine all clogging and sticking plastic valves and the damned pumps that you have to keep greased....THAT STINK.... If you've never seen this toilet, or used it, or flushed it, look out for it.... The model installed on this spartan trimaran is the simplest thing I've ever seen. The seawater seacock through the hull is right behind it and there is a water loop with an anti-siphon U in the top of it because in this boat the toilet is far below the waterline and would flood the hull otherwise. There's NO PUMP, NO PARTS, NOTHING MOVING in the head, itself! The head is simply plumbed with plastic bilge pump hose to a regular Whale diaphram bilge pump surface mounted high on the bulkhead behind and to the side of it so you don't bump your head while seated. The outlet of the pump goes into the Y-valve to select sanitary tankage or overboard discharge. After the pump, it's the same old sewer system any boat has....way too small to hold much for long. You have two choices to flush.... Leave the seat OPEN and it merely pumps out whatever's in the bowl until it sucks air....LOTS OF AIR! That diaphram pump isn't that crappy little plastic pump on the head you have now...and it works SO EASY WITH SUCH A SHORT LIFTING HOSE...ABOUT 3' so the pump is ABOVE the waterline and can't backfill the boat if one of its valves is stuck open. If you want to use up your fresh water to flush with the shower head, this allows it just fine. Leave the seat CLOSED and it's a full-blown, self-flushing vacuum toilet because the seat seals to the toilet and the lid seals to the seat VERY TIGHTLY WITH A SOFT PLASTIC SEAL ON BOTH ON THE BOTTOMS. You hear a sound that sounds like one of those tankless gas station toilets flushing when you pull the big handle on the 1" water line that feeds them! This puppy flushes HARD on that much vacuum from the Whale pump! Running on 1 atmosphere of PRESSURE, 14 PSI, I don't think ANYTHING that can be sucked down that tube could EVER clog it up! Now the important part......IT SAYS SUCKED SHUT VERY TIGHTLY AFTER THE FLUSHING STOPS! The suction comes from an intake valve that won't let the toilet flow go backwards towards the seacock. As this valve, which must be a simple flapper, is on the seawater side, nothing in the toilet will clog it up and with this much pressure I cannot imagine anything from the sea stopping it from opening. To flush you need only close the lid and make TWO pumps on the Whale. Now SEALED, the toilet CANNOT SMELL UP THE BOAT! God, where was this when I used to have to stand watch downwind from the stinky heads in cruising boats?! Yes, Larry, I had one in a previous boat and it is just like you say but a very big disadvantage is that if there is a queue for the heads the next person is going to find the lid securely vacuumed shut until it slowly leaks its vacuum away and that takes some time. . Sometimes people get so frustrated that they heave the lid up and then find that the sealing ring has pulled out of its groove and has to be pressed back in before it can be used again. Not always a nice job on a head that many people have used in rough sea conditions!!! Can a vacuum release be added to let the air in the bowl? |
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#10
posted to rec.boats.cruising
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Lavac marine head
Boeland wrote:
Dennis Pogson wrote: "Wilbur Hubbard" wrote in message anews.com... "Larry" wrote in message ... http://www.lavac.com/ I found the website of the really great marine head installed on a racing trimaran that's visiting Charleston this week. After struggling with those cheap plastic crappers from Waste Marine all clogging and sticking plastic valves and the damned pumps that you have to keep greased....THAT STINK.... If you've never seen this toilet, or used it, or flushed it, look out for it.... The model installed on this spartan trimaran is the simplest thing I've ever seen. The seawater seacock through the hull is right behind it and there is a water loop with an anti-siphon U in the top of it because in this boat the toilet is far below the waterline and would flood the hull otherwise. There's NO PUMP, NO PARTS, NOTHING MOVING in the head, itself! The head is simply plumbed with plastic bilge pump hose to a regular Whale diaphram bilge pump surface mounted high on the bulkhead behind and to the side of it so you don't bump your head while seated. The outlet of the pump goes into the Y-valve to select sanitary tankage or overboard discharge. After the pump, it's the same old sewer system any boat has....way too small to hold much for long. You have two choices to flush.... Leave the seat OPEN and it merely pumps out whatever's in the bowl until it sucks air....LOTS OF AIR! That diaphram pump isn't that crappy little plastic pump on the head you have now...and it works SO EASY WITH SUCH A SHORT LIFTING HOSE...ABOUT 3' so the pump is ABOVE the waterline and can't backfill the boat if one of its valves is stuck open. If you want to use up your fresh water to flush with the shower head, this allows it just fine. Leave the seat CLOSED and it's a full-blown, self-flushing vacuum toilet because the seat seals to the toilet and the lid seals to the seat VERY TIGHTLY WITH A SOFT PLASTIC SEAL ON BOTH ON THE BOTTOMS. You hear a sound that sounds like one of those tankless gas station toilets flushing when you pull the big handle on the 1" water line that feeds them! This puppy flushes HARD on that much vacuum from the Whale pump! Running on 1 atmosphere of PRESSURE, 14 PSI, I don't think ANYTHING that can be sucked down that tube could EVER clog it up! Now the important part......IT SAYS SUCKED SHUT VERY TIGHTLY AFTER THE FLUSHING STOPS! The suction comes from an intake valve that won't let the toilet flow go backwards towards the seacock. As this valve, which must be a simple flapper, is on the seawater side, nothing in the toilet will clog it up and with this much pressure I cannot imagine anything from the sea stopping it from opening. To flush you need only close the lid and make TWO pumps on the Whale. Now SEALED, the toilet CANNOT SMELL UP THE BOAT! God, where was this when I used to have to stand watch downwind from the stinky heads in cruising boats?! Way too much trouble and expense when the following does the job better in every way: http://store.vernondeon.com/index.ph...&ID=17&PID=428 Only $8.95 plus shipping. Wilbur Hubbard We can buy 'em for 99p in the uk. That's probably what the vendor on this website pays for them. We're in the wrong business! Dennis. Send me a dozen, heck a gross. Thanks, It'll be gross when ole willy is done! G |
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