[jonboywalton75]

Good idea Peavey

[Jsw window cleaning]

Use a flow controller Jon I been using same pump for past few years with no problem I think John is wearing out the pressure switches

[jonboywalton75]

Use a flow controller Jon I been using same pump for past few years with no problem I think John is wearing out the pressure switches

Looks like he needs one

[P @ F]

Aint got any spare pumps goin mate have you !

It does seem strange that the pump would run like yours were with the PS gone , thats why i didnt consider the PS , it has 2 lives and surely with a broken circuit it should not have even fired up , well another lesson learnt here today , you will have to attack the Vyair pumps next , gonna be the same issue for sure , glad you got it cracked Jon , not bad for a 75 year old are ya 

Rich 

[jonboywalton75]

Actually Rich, I think that there are different issues with one or two of the Shurflo pumps
One spare we had worked fine as soon as I fitted the new pressure switch
Another was spinning but we couldn't seem to prime it at all
Now we've got him working, I was thinking of fitting a speed modulator  so we can protect the pressure switch
I used to use one and just leave it set at 100%
I think Maplins do sell something like this so I'll get in there and maybe we'll stop burning pressure switches out.
Anyone know which modulators are any good?
I don't want to bother with an expensive controller that I'll just leave set at maximum.
Cheers for everyone's input

[jonboywalton75]

I used to use one like this.
I'll get another and try it

http://m.ebay.co.uk/itm/9-60V-20A-600W-Pulse-Width-Modulator-PWM-DC-Motor-Speed-Controller-Switch-/291905821549?hash=item43f6f15b6d%3Ag%3ANu4AAOSwXetZOT6l&_trkparms=pageci%253Afebc4d3c-51a0-11e7-a151-74dbd180eee8%257Cparentrq%253Aaac6888015c0ab4ccd9898dbfffeecd7%257Ciid%253A12