So I have two small boys and a fair bit of Lego, which I unwisely allowed them to take into the bathtub. Now the drain is clogged and I have a sneaking suspicion that there is a piece of Lego down there wrapped in some sort of hideous gunk. Does anyone know if serious drain cleaner (e.g. a concentrated NaOH and KOH mixture) will dissolve the stuff?
TIA,
rmgw