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Fasten toilet to existing hydronic floor slab
I'm a home re-modeler. My question is seeking a method to secure a toilet (vitreous china) to a concrete floor (with existing hydroponic radiant heating). Like some super adhesive that bonds well to a (vitreous china) toilet and concrete without drilling into the radiant heated concrete slab.
We're installing a new bathroom in a basement with existing hydroponic floor (basement slab below grade). So we obviously do not want to drill into the concrete floor with fasteners. Because it's a basement below grade the plumber is installing a rear discharge pump-up toilet. Normally a toilet (rear discharge or normal bottom discharge) is bolted to the floor using metal Johnni bolts (bolts would be secured by drilling holes into concrete floor). Since the weight is always downward, the toilets most likely movement would be lateral.
I called he manufacturer (SANIFLO) and asked for an alternative method to secure a toilet to the floor and he (the installation technical expert) gave me the only answer he knows- silicone.
My question from a hydponic radiant (concrete) perspective - is silicone the best product available for bonding vitreous china to concrete? I read on this website that silicone has its limits for bonding marble like materials.
Thanks for any advise or experience of previous installers.