Tank in loft overflows every time pressure washer is used.

[rsconor]

Every time my neighbour uses his pressure washer connected from the bathroom tap, the tank in his loft overflows. It's only ever happened twice, minutes after he starts using the pressure washer. Any idea why this happens?

 

[lame plumber]

backflow, best he stops using it imho

 

[Resolute]

I'm guessing the pressure washer is connected to a mixer tap?

 

[Reg Man]

So? no none return valve?

 

[zzzjim]

Is hose feeding pressure washer too short allowing shock waves back into supply,

(Do like Resolute 's mixer tap theory )

 

[Resolute]

Don't think we're ever gonna know!

 

[AWheating]

how can one afford a pressure washer but not have an outside tap??

 

[zzzjim]

.....a pressure washer

With No outside tap !

Silly things writ on the box like " Can be used from a water but "

lead some to believe its not Agressive !

( I just imagine stagnant water sprayed -- Legionella cluster ! )

 

[Plum Bob 66]

Every time my neighbour uses his pressure washer connected from the bathroom tap, the tank in his loft overflows. It's only ever happened twice, minutes after he starts using the pressure washer. Any idea why this happens?

You sure it's the neighbour ?

 

[Phil_Plumb]

So? no none return valve?

Dont be daft reg man, who other than a bona fide plumber bothers to fit a DCV? no one, they go fro the cheapest option and cheapest bodger available, screw the consequences of backflow, eg legionella and all the other nasties that one can infect the whole street with.

People just dont care anymore!