Quote Originally Posted by poolhelp101
thank you. i have what's called back-up algacide, bioguard product i had bought before i found this forum and starting using bleach...is that okay to use the back up algacide instead of the polyquat? also, do i need to add enough bleach to get to shock level before i go? thank you very much for your help
Personally I wouldn't use the product unless it was Poly quat.

Quoting from here: http://www.poolsolutions.com/tips/tip08.html

"Poly quat -- poly[oxyethylene(dimethyliminio)ethylene(dimethyliminio ) ethylene dichloride] -- is sold under multiple names. But if it says 'poly . . . ', it's polyquat."

Check the ingredients on your bottle and if it is Poly quat go for it.

It wouldn't be a bad idea to bring the CL to shock level especially if no one will be adding bleach for you while you are gone.

Enjoy your vacation! I leave next week for vacation and I am really looking forward to it!

Take care.