Declining Water Pressure

[Chris]

My fresh water system works great for about one minute through all facets (opened one at a time) and then declines to a slow drip.

I'm working one tank at a time, checked the vents (water comes out of them when the water tanks are filled to the top), in line filter screen is clean, facet screens are clean.

Just replaced the water pump, it recharges after being on for a minute and does not cycle on until the water is being used.

Any suggestions old be greatly appreciated

Thanks

Chris

S/V TENACITY II

B40#197

[Mike Brown]

Chris, if I understand correctly the problem started after you installed the new pump. If that’s correct then I’d go back and check both the intake and discharge hoses for possible blockage(s). 
Mike

[Tevfik]

Have you checked that you still have air pressure in the accumulation tank? You might have lost air. Use by cycle pump to fill the air tank and try again. 

[Chris]

Hi Mike:

The problem continued after I installed a new pump, thinking the old pump was the problem.

[Chris]

Hi Tevfik:

Thanks.

I'll check the accumulation tank tomorrow.

[Cam Whitlock]

Do you have the same pressure issue with the shower faucet?

[Chris]

Unfortunately, sames pressure issue with all faucets and cockpit shower

[Cam Whitlock]

Roger that.  I have encountered what I perceived to be reduced pressure in my galley faucet and head lav faucets before where it turned out to be debris buildup at the faucet strainer.  Doesn’t sound like that’s your problem. 

[Chris]

Checked air pressure in the accumulation tank 40psi.

I am perplexed...

Is there a screen in the water tank?

[Mike Brown]

Chris, I’d troubleshoot both sides of the system both suction and discharge. Doing so may require rigging some jumpers around specific components of the system. Start with the discharge side disconnecting the output from the pump. Use a jumper hose to direct the water into a bucket or the bilge whichever is easiest to clean up. If the water flows properly then move downstream. If it does not then work upstream. Continue to do so until you find the cause of the problem. Good luck and keep us posted on your results. 
Mike

[Chris]

I am thinking that the vents may be partially blocked by spiders.

How do I clean it?

[Chris]

Great News!

I found the problem.

Turns out that when disconnecting and inspecting the fresh water check valve I found just enough debris (black thin plastic tape like material)  to slow down the flow!

Cleaned it out and the water pressure is back to normal.

Thanks for all your helpful suggestions

[Mike Brown]

Chris that’s good news. The debris could have been from the tank when they cut opening for the hose fittings. Glad to hear you have it fixed. 
Mike