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It is currently an issue as I had a few friends over who were wearing suits (my wife & I prefer au natural so foam is not usually a problem for us). Needless to say, this is my first battle with foam....
Turn your pumps and air blower if you have one, make as much foam on the top as you can, take your wet vac or shop vac and put it on blower and BLOW the foam off the top of the spa. Simple and easy. Then after you get 90%of it blown away, use some "foam away" in a spray bottle for the finishing touches.After this routine, be a bit more firm on what enters your water.
I have the same problem. After having some guest over for New Years, the tub looked horrible and there was some foam.I personaly am a bit hesitient to add foam and enzime products as I feel they add to the TDS and cloud up the water. I'm in a cold climate (MA) and also need to get another 3 mo out of my water. I have balanced the PH. AL and harndness of the water. I have added a fair amount of Bright and Clear Clarifier - I am not exactly sure what the difference between this and a foam down product and/or one lable as enzyme are, but it seems to clear up the mess (including the foam) without turnging the water as "dull". It takes a few days and a few extra filter cycles but seems to be geting better.The day after adding clarifier, I had to wipe a scum line off around the water line, as well as clean the filter and of course chlorinate and shock. I think I am about 95% back to pre-party water conditions.Is my slow and steady approach ok? Or should I be adding an enzyme?