dock hookup of fresh water system montego 2757

towmanvince

Recruit
Joined
Jul 4, 2010
Messages
1
Hi,
We need help as first time boaters. We have Montego 2757 1989 Carver boat but have no idea how we are supposed to get our own water running. We have all of our manuals but none with schematics or specific locations for pump switches etc. Can anyone give us a step by step to hook up to fresh water access from dock to have running kitchen, bath, shower water? Thanks a bunch.
Vince
 

JoLin

Vice Admiral
Joined
Aug 18, 2007
Messages
5,146
Re: dock hookup of fresh water system montego 2757

Hi.

Do you have a 'city water' hookup, or is your water supply completely self-contained (storage tank only)? A city water hookup is pressure regulated so you can hook directly to a dockside water supply without blowing your boat's plumbing from the pressure. I don't have that on my boat, but you might.

My boat's fresh water supply is a 20-gallon tank. I fill it from a hose that's rated for carrying potable water (same as a garden hose, but made from non-carcinogenic material. I fill the tank and change the water in it regularly to avoid bacteria growth. We don't use that water for drinking (though we could and many do). We use it for showering and washing dishes.

At the beginning and several times during the season, I pour a half cup of laundry bleach into the tank, run the treated water through all the plumbing and faucets, and let it sit overnight. Then I drain and refill the tank.

My water pump is a 12-volt 'demand' type, meaning that when I switch it on, it pressurizes the system and turns off until a drop in pressure occurs (when we open a faucet). Then it comes on and continues to cycle on and off as needed. The pump is located near the water tank. We always switch the pump 'off' when we aren't using water. Otherwise a leak in a hose or faucet would run the pump and empty our tank quickly.

The pump switch itself is a simple on-off toggle or rocker switch that should be located in or near your main switch panel, or near the galley sink.

Hope some of this helps.
 

JoLin

Vice Admiral
Joined
Aug 18, 2007
Messages
5,146
Re: dock hookup of fresh water system montego 2757

OH! Welcome to iboats! :)
 

sasto

Captain
Joined
Jun 1, 2010
Messages
3,918
Re: dock hookup of fresh water system montego 2757

Your model should have a deck fill on the gunnel labeled 'water'. This is used to fill tank. Looks like your fuel fill. You will need your water pressure breaker on. Dockside fitting is usually mounted near your shore power hook-up. This eliminates the use of your pump. Keep breaker off. Others may give you a better idea. Hang in there you will find your answer.
 

seabob4

Lieutenant Commander
Joined
Jun 10, 2008
Messages
1,603
Re: dock hookup of fresh water system montego 2757

BTW, the city water hookup will be a chrome plated fitting about 4" across with a hose bibb in the center. We locate ours aft by the transom, helps keep water away from electricity...
 

zip34788

Seaman
Joined
Jan 23, 2010
Messages
53
Re: dock hookup of fresh water system montego 2757

It is certainly a shame that no one went over the systems with you at the time you took possession. I am not familiar with Carver, so I will be of little help.

The one thing I can tell you for sure is that you NEVER EVER want to leave your boat unattended while connected to city water. You never know when a line might rupture and flood your boat.

A dock neighbor friend of mine did just that. Even with two automatic bulge running they couldn't keep up. It was a very costly error to say the very least.

Turn off the water should be on your shutdown check list!
 

seabob4

Lieutenant Commander
Joined
Jun 10, 2008
Messages
1,603
Re: dock hookup of fresh water system montego 2757

34788,
With a 1989 boat, I doubt ANYBODY goes over the boats systems with a potential buyer...

I would, but I'm weird...
 

RickJ6956

Petty Officer 1st Class
Joined
Jul 18, 2009
Messages
349
Re: dock hookup of fresh water system montego 2757

Carver's standard issue uses a tank and "demand" pump. Look for a switch/circuit breaker on the 12-volt panel labeled "Water". The switch won't turn the pump on -- it just energizes the circuit. The pump senses when a faucet has been opened and turns itself on to provide water. When the faucet is turned off, the pump shuts off. Even if the tank is empty you should hear the pump when a faucet is opened.

An electric water heater is not standard. If you have one, it will be on its own circuit breaker on the AC 120-volt panel. The heater can also have a loop to one of the engines so it can use engine heat to warm the water.

City water (a hose connection) was also not standard. The hose connection would pass through a regulator and a check valve before it hits a "Y" or "T" downstream of the 12-volt pump into the main line. The 12-volt pump also has a check valve. Check valves prevent each system from back-feeding into the other.
 
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