I have a row of 8 pedicure spa chairs. These chairs drain to a horizontal 4" pipe running from the back of the first spa to the 8th spa and then to the basement.
Since the spa tub drain is very close to the floor, I can't not drain on top of the main drain line. I am afraid that if more then one spas drain at the same time, it may back flow onto the other unused spas. The existing floor of the salon is concrete and I can't not drain each individual spa chair down to the basement. I was hoping not to raise the floor (build a step) so that I can drain on top of the main line.
Will a inline check valve work
Your help is appreciated.
Since the spa tub drain is very close to the floor, I can't not drain on top of the main drain line. I am afraid that if more then one spas drain at the same time, it may back flow onto the other unused spas. The existing floor of the salon is concrete and I can't not drain each individual spa chair down to the basement. I was hoping not to raise the floor (build a step) so that I can drain on top of the main line.
Will a inline check valve work
Your help is appreciated.
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