Model # WG1154AVPAK2
Alternate Part #'s _WG1154AVPAK2
Deluxe Main Drains with Adjustable Plaster Collar (Concrete)
Hayward main drains set the standard in quality and value. These heavy-duty drains are injection-molded of ABS, which resists chemical attack that leads to "yellowing".This Hayward main Drain can be used on Residential or Commercial applications; also new construction or replacement covers. Please note that Hayward now offers these only as a 2-pack due to regulations that require pools to have two main drains.
How is the drain opened & closed? Will this also work in a concrete spa?
Yes this would work in a concrete spa, you would open and close the suction of the main drain by using a Jandy Valve which you may view or purchase here http://www.inyopools.com/valves_jandy.aspx You would plumb the Jandy valve into your plumbing and by opening and closing the valve you could adjust the amount suction from the drain.
We must retrofit our pool to be compliant with the Virginia Graeme-Baker Act. Is this main drain suitable to install so I do not get fined and to keep my pool safe?