Shower hook-up

[lakewaterjunky]

Those of you that have a shower on board, which side of your raw water pump, does your cold-water pick-up line connect to? The intake or pressure side?

Heatercraft says that either one is O.K.

I realize that you are sure to run out of warm water after a while when the engine is not running, but I’m curious to know about any temperature fluctuation or flow rate difference using either type of cold water connection point (before vs. after the raw water pump).

Has anyone noticed a difference between these cold water supply points or changed your cold-water connection because of it?

With cooler weather around the corner, I’ll be installing mine in the Sunsetter very soon. Its been sitting in the box for a few days now, heck all I need is time, everyone has plenty of that, right.

[SunriseH2OSkier]

Mine is on the pressure side of the RWP. Never had one that was installed on the intake side, don't know of any real reason to do so.

[Hwood]

I think you'd get crappy (if any) cold water if you were before the RWP because it will be pulling water away, towards the pump.

[radioman]

the cold water tees in the large suction hose before the raw water pump. IE between the seacock and the raw water pump. the hot tees into the side of the block at the block drain. or the knock sensor.

you will get a better and more ajustable blend this way.

[SunriseH2OSkier]

the cold water tees in the large suction hose before the raw water pump. IE between the seacock and the raw water pump. the hot tees into the side of the block at the block drain. or the knock sensor.

you will get a better and more ajustable blend this way.

I completely disagree with this statement. Mine is located after the raw water pump, and I have complete blending capability - I can get full cold, full hot, and anything inbetween. Fact of the matter is that it is much easier to install that tee into the softwall hose after the raw water pump, and if functions very well this way.

[lakewaterjunky]

Thanks for the replies, I think that the pressure side is going to be my choice so far.

We are going to add a heater sooner or later and Heatercraft said to install the “Y” fitting for increased flow at idle, on the intake side of the raw water pump so that it creates a drawing effect through the heater core at low RPMs.

By installing the shower feed on the pressure side, it will free up room on the intake line for the addition of the heater adaptor later.

[tvano]

it doesn't take much of a leak on the suction side of the rwp to make it function poorly.

my money puts the cold water shower pick-up line in the pressure side of the system.

avoids another potential air leak into the suction side.