Preventing Backflow on Ariel Jetted Tub Install

[DaveC1]

I am installing the following free standing jetted tub:

http://www.arielbath.com/products/Ariel-Platinum-AM128JDCLZ-Bathtub.html

There is no water inlet faucet....the water comes into the tub through the jets in the side. Inspector is insisting that I install back flow prevention valves for both the hot and cold inlet. Is this a reasonable request and is there an easy way to do it?

 

[hj]

it is not only reasonable, but NECESSARY for ANY tub with submersible inlets. The 'minimum' protection would be check valves on the supply lines, if he would accept them., possibly with a rim mounted vacuum breaker on the supply line from the two handles to the jets. Otherwise you have to install backflow/vacuum breakers on both lines, but one would have to be suitable for hot water.