water pressure solution

[ESCAPE PLAN]

Good Morning everyone

How does everyone deal with a water pressure drop when i'm
in the shower and someone (Admiral) flushes freshwater toilet while hooked to
shore water? its a 1975 64my.

Thanks,
Tony

[Captain Ralph]

Happens on dock service and not on ships water pump service?
If it is not poor service from the dock, could be you have a stuck pressure regulator.

It can be a challenge training your superior officer (admiral).
Here in the swamps, we would flush the head while the boss is in the shower.
Oh, grab that towel first also, always helps in the advanced training courses.

[ESCAPE PLAN]

i have 48 psi at the dock, could it be the original fixtures?
newer ones have the pressure differential valves to stop that from happening correct?

[ESCAPE PLAN]

mods, can you please move this to tech talk?
posted in wrong section. THX

[Phasma2128]

Check your screens

[rwaldrop13]

Pau Hana had a accumulator in the water system downstream from the shore water/freshwater pump in the plumbing. We maintained pressure with shower running and flushing FW head.

[Captain Ralph]

i have 48 psi at the dock, could it be the original fixtures?
newer ones have the pressure differential valves to stop that from happening correct?

What pressure onboard with shower and flushing?

If you have an old stuck pressure regulator onboard, dock service at 48psi could be on one side and it not open up when the pressure drops on the head and shower side.


Accumulators can help dampen this effect if they are charged to the then operating pressure.
A few psi less than working mean pressure I think.

[SKYCHENEY]

I have never used the dockside water connection. These Hatteras have big water tanks. I run with my 120v shallow well pump and never have problems with pressure. Forget the shore connection. Fill your tank as needed. It will keep the water fresh in the tank.

[carolinacoast]

I did have trouble with a PRV that failed in the boat. It failed open though, not closed. I had them removed from both engine rooms, and now use a bronze one like an RV on the dock. Anything over 30 psi should be enough pressure for a shower and toilet. I agree that it sounds like blockage somewhere.
I have a quick disconnect for water and click it off at the boat when I leave, if I'm not using tank water.

[ESCAPE PLAN]

apparently a failed dockside regulator was the culprit. marina repaired it now i have 55+ psi!

Thanks everyone.