[C320-list] water pump replacement

[Chris Holt]

Not sure of any technical reason, but one reason not to do what you are 
saying is to manage your water supply.  I never have both on at the same 
time especially if we are doing a weekend out somewhere because I have a 
wife and three daughters on board.
When I empty one of the water tanks I know now about how much water I have 
left.

Chris

----- Original Message -----
From: "Chris Burti" <clburti at gmail.com>
To: <catalina at thehares.com>; "C320-List" <c320-list at catalina320.com>
Sent: Thursday, May 31, 2007 3:43 PM
Subject: Re: [C320-list] water pump replacement

> Comment and Dumb Question.
>
> Comment: I bought mine new for under $100 on eBay.
>
> Dumb Question: Why bother with the valves at all? I leave both open at all
> times anyway and haven't seen any reason to mess with them for normal
> operations during over four years of use.
>
>
> On 5/31/07, Jeffrey Hare <Catalina at thehares.com> wrote:
>>
>> Hi Martin,
>>
>> If you don't want to spend a couple hundred dollars on a new pump, 
>> there's
>> a
>> solution to the noise using the stock pump.
>>
>> Our solution is in two parts.
>>
>> 1) Unscrew the pump from the mounting board, and re-mount with some 
>> layers
>> of chunks of closed-cell pipe insulation below and above the pump feet to
>> remove all the direct connection between the pump and the mounting board.
>> This helps a lot.
>>
>> Next part of the noise problem is due to the water hammer in the hard
>> pipes
>> (not to mention that the pipes are clipped directly to the hull.
>>
>> 2) To solve this I installed a 1 gallon expansion tank from Home Depot
>> mounted right in the compartment with the pump..  This absorbs the water
>> hammer and quiets the whole system down a great deal.
>>
>> Another great benefit of this is that you have very steady water pressure
>> even at very low flow rates.  It's even more steady than you get with a
>> vsd
>> pump.  You also have about a pint of water available without even turning
>> on
>> the pump switch, which is great in the middle of the night.
>>
>> The expansion tank was about $25-ish bucks, an extra Whale "T" fitting 
>> and
>> a
>> threaded whale fitting for the end of the tank will add another $10-ish
>> bucks.  The result is a water system that is close to the sound volume of
>> a
>> variable speed pump for under $50 bucks and an hour or so of time.
>>
>> As a side note, I read a review or two that says the Shur-Flow Extreme
>> Smart
>> Sensor pumps are more reliable and easier to service with replacement
>> parts
>> than the Jabsco VSD.  The reviewer indicated that in a cruising
>> environment
>> he went through two Jabsco pumps and a few service kits before switching
>> to
>> the Shur-flo, which he never had to service.  For what that's worth.
>>
>> We now have a Shur-Flow Extreme 4gpm pump (and still have the expansion
>> tank
>> setup), but only because the Shurflo guys gave us one at a marine trade
>> show
>> last year.  We were completely satisfied for 5 years with the previous
>> pump
>> using the above modifications.  We were terribly annoyed with the stock
>> setup.
>>
>> -Jeff
>>
>> PS: We suggest you move the water tank valves out from under the aft 
>> cabin
>> bed.  It's a super simple project and is SOOOO convenient.
>>
>>
>> -----Original Message-----
>> From: Martin Raphael [mailto:mraphael at zhonka.net]
>> Sent: Wednesday, May 30, 2007 9:26 PM
>> To: C320-List
>> Subject: [C320-list] water pump replacement
>>
>> Hello -- I have grown annoyed with the noise made by the stock water pump
>> in
>> my 1994 boat and am considering a replacement.  I was looking at models
>> from
>> Jabsco and West Marine but wonder if any of you have replaced the pump
>> with
>> something that has quieter operation.  Is the replacement fairly straight
>> forward or are there some tricks I should anticipate?  What capacity
>> (gallons per minute?) should I be aiming for?
>> Thanks,
>> Martin Raphael
>> Rhapsody #108
>>
>>
>>
>>
>>
>
>
> -- 
> Chris Burti
> Farmville, NC
>