Washing Machine & Dish Washer. Do they need Check Valves?

[wild nomad]

Hi there,

Need to install a washing machine & dishwasher. Do they have there own integral check valves or do I need to add them?

Thanks in advance

 

[REDSAW]

what does it say in the manual specs?

 

[wild nomad]

what does it say in the manual specs?

No manual!

 

[newcastle phill]

No you dont.

Dishwashers dont back fill because they have a siphonic tank that has an air gap.

washers have a built in air gap.

Fixed maybe 15 to 20 000 of the bstards years ago fot hotpoint and brut'ish gas

 

[wild nomad]

No you dont.

Dishwashers dont back fill because they have a siphonic tank that has an air gap.
Dishwashers have a built in air gap.

Cheers Phil,

I take it you need one for a washing machine then?

 

[newcastle phill]

Sorry you were too quick before I realised my fat fingered typing mistake

Read above

 

[wild nomad]

Sorry you were too quick before I realised my fat fingered typing mistake

Read above

Nice one Phil! Thanks

 

[newcastle phill]

If its in a very low pressure area.
If you pull the gause filter out of the solenoid inlet / hose connector.
Get a pair of long nose pliers and if you look carefully inside. There is a rubber o ring restrictor.

Just pull it out to improve things.
Good pressure = no need