Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: ftp on June 15, 2009, 08:30:25 pm

Title: Little bleeder!
Post by: ftp on June 15, 2009, 08:30:25 pm

Has anyone found a valve so they can bleed their system? I'm often getting inconsistant flow from my system when my tank drops below half full. I'm sure when I brake it allows the pump to gulp some air as the water sloshes forward. This then goes to the DI and so on. Could do with a self bleeding valve of some sorts to get the air out quickly.

Title: Re: Little bleeder!
Post by: Neil Williams on June 15, 2009, 08:39:51 pm

If you want to go down that route why not fit a one way valve just after the tank outlet, that'll keep the water in the pipework and stop it running back into the tank.

Title: Re: Little bleeder!
Post by: ftp on June 15, 2009, 08:48:46 pm

I think because my varistream is permanently on, it gulps the air when the oulet is exposed under braking. I could shut the valve after every job or switch the power off after every job I suppose. Once the air gets in it's a bugger to get through DI, strainer and then pump.

Title: Re: Little bleeder!
Post by: Nathanael Jones on June 15, 2009, 09:22:21 pm

I have a "T" fitted after my heater, one line goes to my reel, the other goes straight back to the tank via a valve. It was installed for heating the tank on frosty nights, but works brilliant for bleeding the system too.

Title: Re: Little bleeder!
Post by: windowswashed on June 16, 2009, 12:38:25 am

Totally agree with Neil, fit a one way valve to solve the problem.

Title: Re: Little bleeder!
Post by: ftp on June 16, 2009, 07:57:15 am

But a one way valve will still let air in in the direction of the water flow would it not?

Title: Re: Little bleeder!
Post by: john tomkins on June 16, 2009, 08:37:54 am

I had exactly the came problems and it was driving me mad.
Got a 1/2" double barb pvc check valve from dual pumps about £14 delivered (can get cheaper brass ones from a plumbers merchant) this along with mounting the pump and hose as low as possible, totally stopped air getting in, I now have no problems whatsoever.

To answer your last question..... the check valve is under spring pressure, it won't let air/water through unless its more than 0.07 bar
http://www.dualpumps.co.uk/images/Catalogue_PDFs/Check_Valves.pdf
215 item PVC check valve

Title: Re: Little bleeder!
Post by: ftp on June 16, 2009, 06:03:25 pm

Splendid  ;)

Title: Re: Little bleeder!
Post by: Tim82 on June 16, 2009, 07:09:59 pm

I just disconnect the pipe thats connected to the outlet on the pump box until it clears the air lock. simple i know but it does the trick

Title: Re: Little bleeder!
Post by: john tomkins on June 16, 2009, 09:12:44 pm

Quote from: Tim82 on June 16, 2009, 07:09:59 pm

I just disconnect the pipe thats connected to the outlet on the pump box until it clears the air lock. simple i know but it does the trick

I used to love doing that 3 to 4 times a day ::)

Title: Re: Little bleeder!
Post by: Tim82 on June 17, 2009, 09:00:41 am

used to? ;D