That is my concern. I think I will install both check valves
and isolation valves as well.

Doug
s/v Callista

"Steven Shelikoff" wrote in message
...
On Mon, 12 Apr 2004 13:33:26 -0000, Larry W4CSC wrote:

(Steven Shelikoff) wrote in
:


That begs the question why are you going to put two pumps in parallel
if
you only want to run one at a time?

Steve


Backup?

Then I wouldn't put them in parallel without isolation valves. Even if
it works when both pumps are good, you don't know how the pump will
fail.

Steve

Dont need check valves if you install isolation valves.

In article , Doug Dotson
wrote:

That is my concern. I think I will install both check valves
and isolation valves as well.

Doug
s/v Callista

"Steven Shelikoff" wrote in message
...
On Mon, 12 Apr 2004 13:33:26 -0000, Larry W4CSC wrote:

(Steven Shelikoff) wrote in
:


That begs the question why are you going to put two pumps in parallel
if
you only want to run one at a time?

Steve


Backup?

Then I wouldn't put them in parallel without isolation valves. Even if
it works when both pumps are good, you don't know how the pump will
fail.

Steve

I want to be able to switch pumps with the flick
of a switch not crawling into the engine compartment to switch
valves.

Doug
s/v Callista

"Rich Hampel" wrote in message
...
Dont need check valves if you install isolation valves.

In article , Doug Dotson
wrote:

That is my concern. I think I will install both check valves
and isolation valves as well.

Doug
s/v Callista

"Steven Shelikoff" wrote in message
...
On Mon, 12 Apr 2004 13:33:26 -0000, Larry W4CSC
wrote:

(Steven Shelikoff) wrote in
:


That begs the question why are you going to put two pumps in
parallel
if
you only want to run one at a time?

Steve


Backup?

Then I wouldn't put them in parallel without isolation valves. Even
if
it works when both pumps are good, you don't know how the pump will
fail.

Steve

"Doug Dotson" wrote in
:

I want to be able to switch pumps with the flick
of a switch not crawling into the engine compartment to switch
valves.

Doug
s/v Callista


Engine compartments with dead engines can get ugly in 12' waves beating
against the hull in a foundering boat. I'm with Doug. I want it automated
as it can get with all the isolation valves open and a pump switch at the
helm.

Larry
W4CSC

Agreed again! Switching to the backup pump quickly is a must.
Then I can crawl into the engine room and switch valves to
service the failed pump at my leasure. I'm also installing a vacuum
gauge in a location viewable in the pilothouse. Hour meter on
each pump allows me to manage the use of each pump.

Doug
s/v Callista

"Larry W4CSC" wrote in message
...
"Doug Dotson" wrote in
:

I want to be able to switch pumps with the flick
of a switch not crawling into the engine compartment to switch
valves.

Doug
s/v Callista


Engine compartments with dead engines can get ugly in 12' waves beating
against the hull in a foundering boat. I'm with Doug. I want it
automated
as it can get with all the isolation valves open and a pump switch at the
helm.

Larry
W4CSC

Agreed again! Switching to the backup pump quickly is a must.
Then I can crawl into the engine room and switch valves to
service the failed pump at my leasure. I'm also installing a vacuum
gauge in a location viewable in the pilothouse. Hour meter on
each pump allows me to manage the use of each pump.

Doug
s/v Callista

"Larry W4CSC" wrote in message
...
"Doug Dotson" wrote in
:

I want to be able to switch pumps with the flick
of a switch not crawling into the engine compartment to switch
valves.

Doug
s/v Callista


Engine compartments with dead engines can get ugly in 12' waves beating
against the hull in a foundering boat. I'm with Doug. I want it
automated
as it can get with all the isolation valves open and a pump switch at the
helm.

Larry
W4CSC

"Doug Dotson" wrote in
:

I want to be able to switch pumps with the flick
of a switch not crawling into the engine compartment to switch
valves.

Doug
s/v Callista


Engine compartments with dead engines can get ugly in 12' waves beating
against the hull in a foundering boat. I'm with Doug. I want it automated
as it can get with all the isolation valves open and a pump switch at the
helm.

Larry
W4CSC

then use ASCO marinized solenoid valves ... or get an electric winch to
operate the halyards. You do have a SAILboat, dont you?

The more 'crap' you add to the complexity only make you more vulnerable
to breakdown. KISS and risk puking into the bilge every few years.


In article , Doug Dotson
wrote:

I want to be able to switch pumps with the flick
of a switch not crawling into the engine compartment to switch
valves.

Doug
s/v Callista

"Rich Hampel" wrote in message
...
Dont need check valves if you install isolation valves.

In article , Doug Dotson
wrote:

That is my concern. I think I will install both check valves
and isolation valves as well.

Doug
s/v Callista

"Steven Shelikoff" wrote in message
...
On Mon, 12 Apr 2004 13:33:26 -0000, Larry W4CSC
wrote:

(Steven Shelikoff) wrote in
:


That begs the question why are you going to put two pumps in
parallel
if
you only want to run one at a time?

Steve


Backup?

Then I wouldn't put them in parallel without isolation valves. Even
if
it works when both pumps are good, you don't know how the pump will
fail.

Steve

then use ASCO marinized solenoid valves ... or get an electric winch to
operate the halyards. You do have a SAILboat, dont you?

The more 'crap' you add to the complexity only make you more vulnerable
to breakdown. KISS and risk puking into the bilge every few years.


In article , Doug Dotson
wrote:

I want to be able to switch pumps with the flick
of a switch not crawling into the engine compartment to switch
valves.

Doug
s/v Callista

"Rich Hampel" wrote in message
...
Dont need check valves if you install isolation valves.

In article , Doug Dotson
wrote:

That is my concern. I think I will install both check valves
and isolation valves as well.

Doug
s/v Callista

"Steven Shelikoff" wrote in message
...
On Mon, 12 Apr 2004 13:33:26 -0000, Larry W4CSC
wrote:

(Steven Shelikoff) wrote in
:


That begs the question why are you going to put two pumps in
parallel
if
you only want to run one at a time?

Steve


Backup?

Then I wouldn't put them in parallel without isolation valves. Even
if
it works when both pumps are good, you don't know how the pump will
fail.

Steve

I want to be able to switch pumps with the flick
of a switch not crawling into the engine compartment to switch
valves.

Doug
s/v Callista

"Rich Hampel" wrote in message
...
Dont need check valves if you install isolation valves.

In article , Doug Dotson
wrote:

That is my concern. I think I will install both check valves
and isolation valves as well.

Doug
s/v Callista

"Steven Shelikoff" wrote in message
...
On Mon, 12 Apr 2004 13:33:26 -0000, Larry W4CSC
wrote:

(Steven Shelikoff) wrote in
:


That begs the question why are you going to put two pumps in
parallel
if
you only want to run one at a time?

Steve


Backup?

Then I wouldn't put them in parallel without isolation valves. Even
if
it works when both pumps are good, you don't know how the pump will
fail.

Steve