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Discussion Starter · #1 ·
Can anybody give us some advice re water pumps. Presently we 'try' to switch the pump off inbetween uses, i.e hand washing, turn on then off again. 15mins later, on again to wash some pots, then off again. My other half thinks that by leaving it on it could put some strain on the gubbins. Has anybody any views on whether or not it is safe to leave on whilst parked up and we are in the van, or are we doing to right thing by switching on and off. Thank you. DK66
 

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Rest In Peace Mike, 1944-2017.
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Hi

Switching it off at the control panel can do no harm but equally leaving it on while you are in the van will do no harm either. My Autosleeper has one switch which switches all the 12v equipment off at that one switch, so we use that as we leave the van ( or more truthful...we try to remember to switch it off :roll: ).

There are two systems used to switch a water pump on when you turn the tap...one system senses the drop in pressure in the pipe and the other system has a micro switch at each tap. In both cases there are no gubbins to get damaged if you leave the switch set to on.

In your Autosleeper it will most likely be a pump with a pressure switch.

A common problem if you leave the pump switched on:-

you may hear the pump "cycle" occasionally when you are not actually running any water.... this is a common problem with the pumps that use the pressure in the pipe to control the pump. Sometimes this indicates that there is a small leak somewhere from the pressure side of the system and a check of the pipework should be made ... but often it is caused by one of the three "valves" inside the pump allowing the pressure in the pipe to bleed back through the pump... so the pressure drops in the pipe and the pump runs for a moment to put the pressure back. Air trapped in the pressure side also seems to cause it but often the problem will cure itself. If you get this problem switch the pump off at night :wink:


Mike
 

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What Mike said :D .

It won't hurt the pump whatever you do BUT, if you leave it switched on while you are away from the van (or even overnight if you are a heavy sleeper) and your system springs a leak somewhere inside the Hab area, it will completely empty your water tank into the inside of the van. 8O

Several dozen litres of water on the carpet is best avoided, so it does pay to switch off at night and as you leave the van . . . just in case?? 8O

Dave
 

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Rest In Peace Mike, 1944-2017.
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Hi

One more tip:

If you have the pressure switch type of pump:-
Always switch the pump off when you drain the fresh water tank. If you do not the pump will run and run and run ..... I know, I did it :oops:

Mike
 

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Discussion Starter · #5 ·
spykal said:
Hi

Switching it off at the control panel can do no harm but equally leaving it on while you are in the van will do no harm either. My Autosleeper has one switch which switches all the 12v equipment off at that one switch, so we use that as we leave the van ( or more truthful...we try to remember to switch it off :roll: ).

There are two systems used to switch a water pump on when you turn the tap...one system senses the drop in pressure in the pipe and the other system has a micro switch at each tap. In both cases there are no gubbins to get damaged if you leave the switch set to on.

In your Autosleeper it will most likely be a pump with a pressure switch.

A common problem if you leave the pump switched on:-

you may hear the pump "cycle" occasionally when you are not actually running any water.... this is a common problem with the pumps that use the pressure in the pipe to control the pump. Sometimes this indicates that there is a small leak somewhere from the pressure side of the system and a check of the pipework should be made ... but often it is caused by one of the three "valves" inside the pump allowing the pressure in the pipe to bleed back through the pump... so the pressure drops in the pipe and the pump runs for a moment to put the pressure back. Air trapped in the pressure side also seems to cause it but often the problem will cure itself. If you get this problem switch the pump off at night :wink: Mike
Thank you for the info.most useful, think we will start leaving it on at least while we are in the van and using it a few times.

Mod Note. Fixed your quote panel for you. Didn't make sense with everything attributed to Mike. :wink: :D
 
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