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Old 19-11-2015, 23:24   #1
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Watermaker pump relief valve

Is it necessary? My output pressure is controlled downstream of the membrane via a simple needle valve. Unless the membrane or this valve is blocked up I do not see how the pressure could spike? Is a SS valve required? I see that at least one Vendor seems to use a brass one right at the pump unused second outlet so no flow through the valve
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Old 20-11-2015, 02:36   #2
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Re: Watermaker pump relief valve

Ours is brass. I don't think they are required as long as you monitor it occasionally while using. It is, after all, just a "oh crap" last resort thing and not part of normal operation. In seven years of operating ours, I have never had it pop off.

On the other hand, they are inexpensive.


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