Mark .. on new p/w

MARK W.

MARK W.

Member
I talked to Mark today about a new p/w. He was very helpful. I was looking to get a bigger gpm p/w but not sure if I need one yet. I dont have a backup if something goes wrong with the one I have and with all the money I spent already not sure. I guess I could get a backup pump, that would be cheaper. Has anyone had to change a pump out in the field? Can I get a bigger gpm pump, and put it on my 4 gpm 3500 psi unit. Always looking to save some money and keep me competitive with the next guy.
 
sounds like you need to call Mark back, he is probably the guy who will give you the answers your looking for even here on this BB.
 
Sure you can!

Tell me more and I will help you work out the numbers.
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I dont think a backup pump is your answer.......there are many other things that can go wrong.........simply having a spare pump does not guarantee you a solution to a problem in the field.
 
bigger pump

Mark,
A spare pump is a good idea if and when you can swing it. I think I would buy a spare unloader first though. Is you pump direct drive, belt, or gear drive? With direct drive you will be limited more to the HP produced by your engine.
It will take approximately 1-1 1/2 hours to change a direct drive pump in the field. You will have to reset the unloader bypass, install the easy start and pressure relief valves during the install . Also the input water filter and detergant injector will have to be transfered to the repalcement pump. Also check and see if the oil level is correct. If the pump is a much higher psi you may have to switch nozzles sizes.
All these prcedures are for a cold unit and may be more complex on a hot unit.

The pump is usually one of the most reliable parts of the system. It also seems to be the first thing that is blamed for psi loss. In most cases it is not the culprit.

Hope this helps!
 
I agree with the above posts. I purchased a backup pump, but not for in-field replacement. I grew up with the mentality that preventive maintenance was the key to success, and would not carry significant backups. However, a month ago I had two failures in the same week - an unloader and crap in my pump valves.

This weekend I plumbed my unloaders with quick connects and can replace one in 1-2 minutes. Have been carrying a smaller direct drive machine as a backup also.
 
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