Make a floating chemical dispenser for pool in minutes cost of nothing.
An empty chemical bottle drill 6-8 pcs, 6-8 mm diameter holes on the side, near the cap, .
Then an polystyrene pieces put in the bottle to the bottom. Cut a little bigger polystyrene as the bottle, it must stretched to the bottle!
Put an maxi combined or chloride tablets in the bottle and can goes to the pool.