sink waste to gutter drain?

RegB · 15 Apr 2005

I'm planning to install a new downstairs bog, shower, and basin and am considering drainage options. I've got two questions.
1. Can the basin/shower waste go into a gutter drain? (My house has separate drains for the gutter waste).
2. I believe basin/shower waste can go to the soil outlet but is this OK if the junction is at a point very close to the loo itself, eg 3 cm along the waste pipe from where it exits the wall? (I'm wondering if there would be a siphon effect).
Any advice much appreciated.

Bahco · 15 Apr 2005

1) No, unless it is a combined drainage system.

2) Will need an anti vac trap or other protection against loss of trap seal.

RegB · 16 Apr 2005

Thanks for that Bahco. It was very helpful. You wouldn't know where I could order that anti vac trap online would you?
Thanks again

Bahco · 16 Apr 2005

Go to a plumbers merchant. £5 tops

kevplumb · 16 Apr 2005

try the shop £ 2.59

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sink waste to gutter drain?

RegB

Bahco

RegB

Bahco

kevplumb

DIYnot Local

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