Can anyone tell about HTH Algaecide

[njpool]

Before showing my father this site, he had bought some linear quat algaecide of the HTH & PoolBrand variety. Since he can't bring them to the Philippines and is a new convert of the BBB method (plus some judicious use of polyquat), he has dumped said algaecide on me. Besides the possible foaming, what other side effects are associated with these products? Are they effective at all or should I just pour them down the drain? I believe it was noted that ammonium chlorides do kill algae, but with the side effect of reducing FC and increasing CC.

[RavenNS]

I don't know about the side effects
but if you really want to use that stuff instead of dumping it down the drain:

you could use it during your pool closing ( who cares if you get foam then?)

you could run around to all the bird baths in town & use a eye-dropper full

you could sell it at a fleamarket or yard sale

you could give it away

you could mix it with water & spray your house roof or shed roof
( to get rid of growths from tree debris)