a plastic cylinder about the size of 10 pucks stacked ontop of each other. this clear cylinder would hold liquid chlorine and be inserted into existing rainbow erosion feeders to slowly introduce liquid chlorine into your pool. the bottom of the cylinder would have a very thick kind of mesh that would allow the bleach or chlorine to come out only when it was hit with a stream of water. if it worked of course you could always add onto it and make it bigger to hold more liquid. kinda like a rigged liquidator to utilize your rainbow feeder.
whatchall think, would it work?