I need a a whole bunch of replys to convince my neigbour that the following is not true.

Their potential new pool person told them that if you pour chlorine into one spot it will only work on that area of the pool. That it will have no effect on the rest of the pool. They have a fast moving pool sweep that disturbs the water. BUT if you use pucks it broadcasts it over the entire pool, even if it got stuck at one end of the pool.

I informed them that it is better to pour chlorine around the edges after nightfall but now they are convinced by Mr. Pool that it will stay stuck by the walls and better to use pucks.

Assuming 2 pucks each in the floating pucks how many floating pucks would it take to maintain a pool at 6ppm in a 20,000 gal gunite pool if it lost 2 ppm per day? How much Cyanuric Acid in ppm would this add monthly?

I am trying to help them understand why liquid chlorine is better.

Mr. Pool also said he had never heard of Wal-Mart's Liquid Bleach and would have to INVESTIGATE it!

He further stated that one hardly ever has to add Baking Soda. Which I add every third day to the same water supply in my pool to raise it 15ppm.

The pool readings before and after I cleaned it out for them;

Cl = 0.5/6.0
pH= 7.4/7.4
Alk=40/100
Calcium=250/250
Cyanuric Acid 140/55

Please help so I can print out the replies to help them realize what is true and what is not.