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Andrew Smith
Andrew Smith, Plumber
Category: Plumbing
Satisfied Customers: 3629
Experience:  City and Guilds qualified plumber
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air admittance valve for saniflo macerator pipe size 21.5 this

Customer Question

air admittance valve for saniflo macerator pipe size 21.5 this is to stop syphon on waste pipe
Submitted: 3 years ago.
Category: Plumbing
Expert:  Andrew Smith replied 3 years ago.

Andrew Smith :

Are you looking to buy one?

Andrew Smith :

Do you need one for the outlet as the saniflow has an air admittance valve already

JACUSTOMER-7wms7ynn- :

it does not have one need one to fit 21.5 waste outlet pipe to stop syphoning when flushed

Andrew Smith :

1.5" is usually the smallest durgo valve you can get so you may have to upsize on the highest point and cut a tee in before the drop to drain

JACUSTOMER-7wms7ynn- :

macerator is only three foot above ground

Andrew Smith :

Product Code: 42968 - Screwfix

JACUSTOMER-7wms7ynn- :

thankyou andrew

Andrew Smith :

no problem