If you have a pool with a suction side cleaner
Pressure side cleaners are those that attach to the pressure side (return) of your pool's circulation system. Also called booster pump type cleaners, the water that is pumped or pushed back to the pool propels these units which have their own hydraulic power plant inside. Being on the pressure side (and not the suction-side), these units have many advantages. They help distribute clean filtered water around the pool and having their own debris bag means that they don't compromise the filter system by bringing dirt and debris into the pump basket and pool filter. Even with the bag full, a pressure cleaner still operates, stirring debris up. It just won't suck up much more debris until the bag is emptied. You should also know that the booster pump for cleaners is not self priming and should only be used when the pool filtration pump is on. Running the booster pump for cleaners without having the filtration pump on will damage the booster pump. A typical warranty will be voided from improper use such as this. The booster pumps for cleaners should not be confused with swimming pool filtration pumps. The filtration pump is the main part of the swimming pool circulation system. The pumping system clears debris from the water and keeps chemicals mixed by pushing water into the filtration system and back out again. Many variables determine how much time you need to run the filtration system, including the size of the pool and how often it's used. Debris that blows into the pool can affect water clarity, as well. Although there are more discussions these days about the use of extra energy used by the booster pumps for cleaners, they are crucial to running many pressure-side cleaner models. Boosters provide a much-needed pressure requirement, often above 30 psi, which filtration pumps cannot create over a long distance. Energy conservation proponents suggest running variable speed filtration pumps on low while the booster pumps for cleaners are on but there is some concession to performance. If your pool has large debris in it, there may not be enough suction power to remove it. Also, a pool filtration pump will take longer to clean a pool on low speed. In areas of the country where the pools are surrounded by trees, a side-suction cleaner is a must. Other style cleaners will not pick up the leaves and other bigger debris, therefore running your pool filtration pump on low speed may not be an option. If you have booster pumps for cleaners that are broken and you are somewhat technically inclined, you may want to consider replacing them yourself.