Dock water supply
- Mkmohn
- Scurvy Dog

- Posts: 7
- Joined: June 21st, 2020, 5:45 pm
- Vessel Info: 2000 396
- Location: Afton MN
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Dock water supply
We have a new to us 2000 396. We hooked up to dockside water and have next to none, water pressure at faucets....did we miss something like an in/off valve? The PO’s never used the dockside water inlet.
Our previous boat had great water pressure with dockside water....at same marina.
Mary
Our previous boat had great water pressure with dockside water....at same marina.
Mary
- buster53
- Admiral

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Re: Dock water supply
Don't know what it is called but where you connect your dockside hose to the boat, there is a little doohickey on the boat side connection to guard against high water pressure. Pull it out and throw it away. Pretty sure that is your problem. Same thing happened to me last year with my 356.
- g36
- Admiral

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Re: Dock water supply
its a built in pressure regulator. Depending on dock pressure it can affect what comes through it and reduce flow i had same thing happen on my last boat.
1997 Carver 405
Crusader xli
The Black Pearl
Soddy Daisy Tn.
Crusader xli
The Black Pearl
Soddy Daisy Tn.
- mjk1040
- Admiral

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Re: Dock water supply
Your most likely have to replace the shore water inlet unit, most likely the pressure relief valve is stuck and not working or the check valve is stuck part way closed. You most likely not be able to get an exact replacement and may have to enlarge the hole for the new unit. You may also try taking the unit off and soaking it in vinegar or penetrating oil and see if it works!
Also make sure all your sink and shower aerators are clean.
Also make sure all your sink and shower aerators are clean.
Mike
I'd Rather Be Boating!
1989 Sea Ray Seville
1986 Carver Mariner 32'
1990's Thompson 22' Cuddy Cabin
1990's 4Winns 245 Vista Cruiser
1980's Thompson 19' Open Bow
I'd Rather Be Boating!
1989 Sea Ray Seville
1986 Carver Mariner 32'
1990's Thompson 22' Cuddy Cabin
1990's 4Winns 245 Vista Cruiser
1980's Thompson 19' Open Bow
- rjr
- First Mate

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Re: Dock water supply
So it goes from "Don't know what it is called but there is a little doohickey on the boat side connection to guard against high water pressure. Pull it out and throw it away. "
to: "Your most likely have to replace the shore water inlet unit,"
I don't know about you but rather than BOAT, I vote for "doohickey."
to: "Your most likely have to replace the shore water inlet unit,"
I don't know about you but rather than BOAT, I vote for "doohickey."
- buster53
- Admiral

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Re: Dock water supply
rjr wrote:Qr Bbpost So it goes from "Don't know what it is called but there is a little doohickey on the boat side connection to guard against high water pressure. Pull it out and throw it away. "
to: "Your most likely have to replace the shore water inlet unit,"
I don't know about you but rather than BOAT, I vote for "doohickey."
Actually, I did replace the boatside water connector. It was pretty cheap and very easy to replace.
Took me less than 5 minutes. I can't remember if I did that before or after I tossed my doohickey.
- Mkmohn
- Scurvy Dog

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Re: Dock water supply
I am ordering a new dockside inlet/pressure regulator.....makes sense that a Twenty year old rarely used item might be “froze” up.
I will follow up when replaced.
I will follow up when replaced.
- Midnightsun
- CYO Supporter

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2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
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Re: Dock water supply
My shore water is also getting weak. Much better and more than acceptable on 12v pump power. Have ordered a new inlet. In my case it was a Shurflo.
Not to many years ago it was a trip to the "Marine" store to find out they have no stock, put down a deposit and wait a week or so only to go back to get the part. Gotta love Amazon, in stock, delivery tomorrow.
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Not to many years ago it was a trip to the "Marine" store to find out they have no stock, put down a deposit and wait a week or so only to go back to get the part. Gotta love Amazon, in stock, delivery tomorrow.
- Midnightsun
- CYO Supporter

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2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
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Re: Dock water supply
UPDATE
After replacement of the dock water inlet, water pressure is back to normal.
Must say this was one of the easiest repairs I have done on the boat. Took about 5 mins.
After replacement of the dock water inlet, water pressure is back to normal.