Water Regulations - Installing a Douche Spray - Legally and Illegally

How to install a douche spray also known as a bum gun legally and also illegally to meet the UK water regulations.
With a quiz at the end.

[@papa.jones.]

*Thanks I really appreciate that you explained it very well*

[@Exodia1986Necross]

Like always , great quality videos 👍🏼

[@lonihollenbeck4654]

Good show, mate.

[@tirvplumbing]

Nice one. 👌 Pull down kitchen taps are another one that people also say incorrectly are ok with double check valves.

[@Londontradecollege]

Good tip!

[@oliversmith8220]

Can i use a DC pipe interrupter or this not possible for a douche spray?

[@Londontradecollege]

No - It wouldn’t work - its very basically a coupling with holes in and would need to be downstream of the douche valve ie on the hose to the spray but then regulations say DC interuppter needs to be minimum 150mm above spill over level of WC and and at same time when you switch on douche water will come out the DC interrupter.

[@farukm7627]

Much appreciated. That sorts the cold water feed. How about the hot water feed if your douch spray is thermostatic? Thanks