[C320-list] Freshwater pump question

[Mike Mellon]

We have the original 1996 Shurflo pump, now rebuilt due to a small 
diaphragm leak that caused frequent cycling. We added an accumulator as 
well that helped considerably if it is pressurized properly. With this 
setup, the full flow can continue for about 10-12 seconds before the 
pump cycling.  No cycling at night.

Installing the accumulator, under the platform under the sink was not 
trivial, but not difficult. Involves removing the sink cabinet (see 
article on website).

Have no experience with 4.0 pump.

Hope this is helpful

Mike
La Vida 1996 #324


On 9/12/2020 10:05 AM, Fishbust wrote:
> Hi all.
>
> I have a 3.0 pump. Works fine but I want to reduce the cycling ‘chatter’ when faucet at low flow and reduce noise at night.
>
> I can buy a shurflo 4.0 pump with bypass that is supposed to be the cure per the advertisement but I read problematic reviews online with excessive run-on and overheating. From this reading I cannot determine if those pumps are problematic or if owners are not adjusting the bypass correctly or even aware that an adjustment may be needed.
>
> Anyone have first hand experience with this type of pump or is it better to just add an accumulator to my system?
>
> Joe
>
>
>
-- 
Michael Mellon
45 Ortalon Ave
Santa Cruz, CA 95060
mmellon at cruzio.com
831-425-5583 Home