Clean It Up
UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: s.hughes on March 30, 2011, 04:58:04 pm
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I have a shurflow pump and for some reason it just started loosing pressure when the hose is connected. I have played around with the controller in the hope it was that but it dosnt seem to be.
When I put water through the pump it is fine but the minute I connect the hose it comes out it spurts and you can see the air in the hose.
I have run the pump for some time to allow any air lockes to be released but again when I connect the hose it starts to spurt.
I am lost for what to do
Anyone else had this problem?
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Anyone??
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Maybe unwind the whole hose reel to see if there is a kink in it?
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If you use hoselok type connectors then air getting into the system can be a real problem, In the end i warmed up the end of the hose using hot water and attached it to the pump with a jubilee clip. That sorted the problem right away.
Dennis
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What is it calibrated to? Not the speed of the pump but the calibration setting.
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Seems to be the pump, I disconnected the controller and found the same problem so that eliminates the controller. Again the pump works ok until the hose is connected and then there is loads of air and its spurting. It sems that the pump is fine until under pressure then it dosnt seem to cope very well. It is 5 years old so it may have had its life.
Hope I'm right though as the only problem is I dont want to order another one to find the same thing
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Try my suggestion, i had exactly the same problem and it cured it.
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I had air lock this week water not comming out of brush so I turned pump full on and turned pole up side down so brush near floor till water came out.
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I had air lock this week water not comming out of brush so I turned pump full on and turned pole up side down so brush near floor till water came out.
did you get wet feet ;D ;D :P ::)
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Hi Dennis,
I know its not the connection as that is really tight, no probs there, its when I connect the brush hose to the pump thats when it gives me problems it dosnt like the pressure.
Hi Bumper,
No good there there either, thats the 1st thing I tried.
Cheers
Steve
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Are you certain you have not got a kink in the hosereel? It is easily done when you are rushing around or not paying attention when reeling in.
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i know it sounds stupid but if you are using hose lock fittings have you plugged the hose into an outside tap to see what happens if it does the same from the mains water pressure you know that it is the hose not the pump.
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I know it is not the hose, I have checked it out and I have also changed it for another one and it is always the same when connecting to the pump.
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Pumps f ucked
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Try replacing your pressure switch
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I had the same with an old shurflo, the diaphram was shot, if its 5 years old might be time to invest in a new one ;D
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where is your pump in relation to tank outlet ? only asking because I had similar problem. have the pump as low as you can and as close to the tank outlet, I also changed from hoselock and fitted push fit john guest fittings and a short length of white plastic 15 mm pipe between tank and pump and my problem was sorted.
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i had this problem, stripped both pumps down, cleaned them and re assembled, still no joy, are you winding hose up with tap valve open & empting the hose of water ???, this was my problem, as when you turn the valve off air is trapped inside the hose, when turning pump back on the water is pumped through the empty hose, forcing the trapped air inside hose backwards into the pump and back into tank,i started winding hoses up with valve off, keeping water in the hoses, problem solved ;D
Brian.
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Maybe the diaphram in your pump has a hole in it from wear and tear????
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If you are getting air in the hoses AFTER the pump - i.e. in the line from the outlet (pressure) side of the pump then air must be getting in at the inlet side (from the tank to the pump). As Dennis Taylor has said, you should replace the hose between the tank and the pump and also dismantle, clean and re-assemble the filter if you have one, putting a little water pump grease on the rubber seal. Provided there is plenty of water above the tank outlet no air can get into the system before the pump. If ther is still air in the pressure side after you've done this, then the only place it can be getting in is inside the pump itself.
Air cannot get into the pressure side as it requires a partial vacuum to draw air into the system.