We have an old Sealand 911-M28 and are going to "upgrade" it to the
711-M28. Through reading this group, I understand that one can install
an inline pump to a secondary (larger) holding tank and have the
pumpout rerouted to the secondary tank. Does anyone know how I can get
more information on doing this?

We have a 1988 Trojan F32 that my husband and I use it for cruising the
Chesapeake and are tired of pumping out every 3 days. Also, the
solution needs to be an economical one. The secondary holding tank in
the V-berth seems perfect. Any feedback from those who have done this
would be welcome!

Thanks -
Geri

In article .com,
"Izmack" wrote:

We have an old Sealand 911-M28 and are going to "upgrade" it to the
711-M28. Through reading this group, I understand that one can
install an inline pump to a secondary (larger) holding tank and have
the pumpout rerouted to the secondary tank. Does anyone know how I
can get more information on doing this?

We have a 1988 Trojan F32 that my husband and I use it for cruising
the Chesapeake and are tired of pumping out every 3 days. Also, the
solution needs to be an economical one. The secondary holding tank
in the V-berth seems perfect. Any feedback from those who have done
this would be welcome!

If you're going to put in a new tank, why not install a big enough one
and remove the old one? KISS.

You'll eliminate many possible sources of leaks & smell, as well.

Get Peggie Hall's book on Marine Sanitation, which I've seen in at
least West Marine and Fawcett's around the Bay.

--
Jere Lull
Xan-a-Deux ('73 Tanzer 28 #4 out of Tolchester, MD)
Xan's Pages: http://members.dca.net/jerelull/X-Main.html
Our BVI FAQs (290+ pics) http://homepage.mac.com/jerelull/BVI/

Izmack wrote:
We have an old Sealand 911-M28 and are going to "upgrade" it to the
711-M28. Through reading this group, I understand that one can install
an inline pump to a secondary (larger) holding tank and have the
pumpout rerouted to the secondary tank. Does anyone know how I can get
more information on doing this?

It's simple: reroute the pumpout line to the larger tank...install a
macerator in that line to transfer the waste.

The 711-M28 Marine Traveler tank holds 9.5 gallons...a macerator pump
moves 12 gal/minute. So I strongly recomend that the second tank be 20
gallons, which would hold two Traveler tankfuls. If it's smaller than 20
gals, you risk overflowing it...any larger (unless you go for 30
gallons, you either lose the additional capacity or risk overflowing it.


We have a 1988 Trojan F32 that my husband and I use it for cruising the
Chesapeake and are tired of pumping out every 3 days. Also, the
solution needs to be an economical one. The secondary holding tank in
the V-berth seems perfect. Any feedback from those who have done this
would be welcome!

My last boat was a 1980 F32 that bought from an estate and
restored...they're wonderful boats! The v-berth is the ONLY good
location on that boat. Any other location that has room for it is too
far from the head. Route the hose from the Traveler to the tank under
the portside hanging locker (the sole in the locker comes out by just
removing some screws)--which is also a great place to put the
macerater--and then behind the drawers. Run the vent off the tank to a
new vent fitting near the bow...don't bring it back to the existing one
behind the vanity in the head. And make the vent 1".

Your best source for a tank is Ronco Plastics
http://www.ronco-plastics.com They make TOP quality tanks for a very
reasonable price, and have more than 400 shapes and sizes. And they
install fittings in the sizes and locations specified by the customer
when they make the tank.

If you need more help, you're welcome to email me: address is my
(dot)name(at)gmail(dot)com.

--
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/books...ku=90&cat=1304

Jere Lull wrote:


If you're going to put in a new tank, why not install a big enough one
and remove the old one? KISS.

Won't work, because the SeaLand 711-M28 Marine Traveler is a
self-contained system...the toilet is mounted on top of the tank.
http://www.defender.com/product.jsp?path=-1|51|806|81394&id=105225

Get Peggie Hall's book on Marine Sanitation, which I've seen in at
least West Marine and Fawcett's around the Bay.

I can't argue with THAT advice, though.


--
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/books...ku=90&cat=1304

Can you put a tee in instead of rerouting?

Peggie Hall wrote:
Jere Lull wrote:


If you're going to put in a new tank, why not install a big enough one
and remove the old one? KISS.

Won't work, because the SeaLand 711-M28 Marine Traveler is a
self-contained system...the toilet is mounted on top of the tank.
http://www.defender.com/product.jsp?path=-1|51|806|81394&id=105225

Get Peggie Hall's book on Marine Sanitation, which I've seen in at
least West Marine and Fawcett's around the Bay.

I can't argue with THAT advice, though.


--
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/books...ku=90&cat=1304

wrote:
Can you put a tee in instead of rerouting?

You could...but it wouldn't make much sense. 'Cuz you'd have to
complicate the plumbing by also routing the discharge fitting from the
larger tank to another tee or y-valve or install a second pumpout
fitting for it. Much simpler to just move the waste from the first tank
into the second tank--as you would from a toilet--and only plumb it to
the existing deck pumpout fitting.

--
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/books...ku=90&cat=1304

Thanks for the reply, Peggie. I appreciate your time! I sent an email
to you privately, but maybe it didn't come across...

You said:

"The v-berth is the ONLY good
location on that boat. Any other location that has room for it is too
far from the head. Route the hose from the Traveler to the tank under
the portside hanging locker (the sole in the locker comes out by just
removing some screws)--which is also a great place to put the
macerator--and then behind the drawers. Run the vent off the tank to a
new vent fitting near the bow...don't bring it back to the existing one
behind the vanity in the head. And make the vent 1".

Do you mean that the hose gets routed through the bottom of the locker
past the v-berth drawer to the tank located in the v-berth? And...that
the pump would be located in the bottom of the locker with the hose?
Someone has been there befo Currently the hoses are routed directly
through the locker (in the back) to a macerator in the v-berth. The
hose from the macerator goes into the bilge and out through a
thru-hull. The macerator (Jabsco 18950) is wired shut - we don't
even know if it works. Looks like we need to:

1. install vents
2. reroute the hose from the macerator to the new tank after verifying
the Jabsco works
3. route the hose from the tank to the pumpout valve.

Does that sound right?

Lastly - why shouldn't we use the existing vent?


Thanks again!

Geri

You said:

"The v-berth is the ONLY good
location on that boat. Any other location that has room for it is too
far from the head. Route the hose from the Traveler to the tank under
the portside hanging locker (the sole in the locker comes out by just
removing some screws)--which is also a great place to put the
macerator--and then behind the drawers. Run the vent off the tank to a
new vent fitting near the bow...don't bring it back to the existing one
behind the vanity in the head. And make the vent 1".

Do you mean that the hose gets routed through the bottom of the locker
past the v-berth drawer to the tank located in the v-berth?

Yes.

And...that
the pump would be located in the bottom of the locker with the hose?

Yes...or it can go in the v-berth if there's room.

Someone has been there befo Currently the hoses are routed directly
through the locker (in the back) to a macerator in the v-berth. The
hose from the macerator goes into the bilge and out through a
thru-hull. The macerator (Jabsco 18950) is wired shut - we don't
even know if it works.

Apparently the boat had a different toilet and a tank in the v-berth
(which is where Trojan put 'em. A PO apparently replaced the toilet with
the system you have now, and pulled out the tank. That macerator had to
have been used to dump the tank. If it hasn't been used in at least 5
years, I'd replace it.

Looks like we need to:

1. install vents

Just one new one...your existing system already has one.

2. reroute the hose from the macerator to the new tank after verifying
the Jabsco works

Not quite. I'd replace all the hoses AND the macerator and start over to
route them as I described earlier. There's no reason to have a macerator
to dump the tank, 'cuz you can't legally use it in your waters.

3. route the hose from the tank to the pumpout valve.

Does that sound right?

Close.


Lastly - why shouldn't we use the existing vent?

Because it's in the wrong location--too far from the tank--to provide
the exhange of air needed to keep the tank aerobic...which is the key
to odor elimination.

I tried emailing you to the address you post here, btw. Maybe that'll work.

--
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/books...ku=90&cat=1304