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Old 04-08-2016, 10:47   #61
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Re: Water Pressure Pump

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My system has a timer, which gives protection from over-running, either from a failed off pressure switch or from a failure to build pressure, as happens when I let a tank go dry.
Now that is a really great concept, the timer self resets I assume on each cycle? Or just a total amount of runtime and then manually reset?
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Old 04-08-2016, 11:19   #62
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Re: Water Pressure Pump

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Now that is a really great concept, the timer self resets I assume on each cycle? Or just a total amount of runtime and then manually reset?
It resets when power is off and starts timing when power is on.
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Old 04-08-2016, 12:14   #63
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Re: Water Pressure Pump

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It resets when power is off and starts timing when power is on.
What a great concept. Who makes it?
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Old 04-08-2016, 12:26   #64
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Re: Water Pressure Pump

Here is one, I like that it is adjustable, from 1 to 30 min.
Mark Grasser - DC Power Solutions
On my list, maybe
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Old 04-08-2016, 13:25   #65
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Re: Water Pressure Pump

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Here is one, I like that it is adjustable, from 1 to 30 min.
Mark Grasser - DC Power Solutions
On my list, maybe
Nice, but won't work for me -- I'm 24v.
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Old 04-08-2016, 13:28   #66
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Re: Water Pressure Pump

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Change it for two pumps in parallel, controlled by a standard pressure switch. If one fails, you cope with the low flow - just go onto a rota for showers until the new one or spare part comes. If the pressure switch fails then rig a manual override.
We have the same two parallel pump set up with two Par 4 40psi pumps in the spares locker along with rebuild kits.
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Old 04-08-2016, 14:35   #67
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Re: Water Pressure Pump

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Nice, but won't work for me -- I'm 24v.

Call him, I'd be surprised if he doesn't have or can't make a solution.


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Old 04-08-2016, 23:04   #68
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Re: Water Pressure Pump

Nice, if you find out they have a 24 volt solution I am interested in several!

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Old 04-08-2016, 23:44   #69
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Re: Water Pressure Pump

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Nice, but won't work for me -- I'm 24v.
Reckon it would work but propably no warranty anymore. It's installed in series so it's just the small internal resistance making the voltage drop seen by the device.

BR Teddy
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Old 05-08-2016, 04:03   #70
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Re: Water Pressure Pump

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Nice, if you find out they have a 24 volt solution I am interested in several!

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It's just a bog standard industrial relay. I just looked in the RS catalogue. They have 1,007 different timer relays. For 24v and with an interval timer the following linked product looks like it will do the job :

RE22R2HMR | Interval Delay Single Time Delay Relay, Screw | Schneider Electric

Some off-delay timers will be OK. A bit confusing as the terminology for relays is inconsistent between manufacturers. You need to look at the timing chart. McMaster Carr will have a ton of suitable components I expect. You may need a contactor as well if your pump is big.
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