Chlorine pucks

[aylad]

My understanding is that when the chemical pucks get wet, they put off varying degrees of heat and gasses, and the reason you can't put cal=hypo in a feeder that's not designed for it is that the trichlor feeders aren't equipped to handle the heat and pressure buildup of dissolving cal-hypo. So the short answer to your question is, no, don't put cal-hypo pucks in a feeder unless it's specifically designed for cal-hypo.

Janet

[Sherra]

Just found the HTH Duration (cal-hypo) "capsules" on this web site (I get their "sale" e-mails, but never buy anything from them).
http://www.poolsupplies.com/Product_...neTablets.html

[Bleach=Chlorine?]

From site:

Lasts for days! Perfect for pool owners with busy schedules or those long Summer vacations. Put duration in your skimmer. Each tablet is specially wrapped in plastic to eliminate any need to touch the chlorination. Can't overstabilize your pool. Composed of calcium hypochlorite.
Note: DO NOT place in a chlorinator !!
You may receive six 3.94 lb containers instead of one pail.

Item No. Size WAS NOW
148270 3.94 Lb. $29.99 $14.99
148275 23.5 Lb. Pail $69.99 $49.99
One 10.5 oz. capsule treats 10,000 gallons of water and lasts 5-7 days!