Backwash Instructions

Backwash when the flow of water coming from the returns is noticeably less than normal and/or the pressure gauge is showing a pressure at least 5 psi. greater than normal. The filter actually cleans better as it gets dirty. (There are fewer openings between the sand particles as the filter traps debris.) If you backwash too often, you are not getting the most out of the filter.

1. Pump off! You can damage the gasket inside the multiport valve if you move the handle before turning the pump off. A damaged gasket can cause an uncontrollable leak.
2. Once the handle is in the Backwash Position, Pump on! There may be water trickling from the discharge hose, but you are not cleaning the filter if the pump is not running.
3. If the water from the hose does not clear within 3 minutes, turn the pump off and wait for the water and sand in the filter to settle – 5 minutes minimum and then backwash the filter again.
4. Once the water is clear, Pump off! Remember – moving the handle with the pump running can damage the gasket. Wait until the water has stopped “rushing” before moving the handle.
5. Return the handle to the Filter position and then Pump on. You have successfully backwashed the filter.
6. Check the water level in the pool – the level has to be midway the skimmer mouth. Since pool water was used to backwash, you may have to add water to the pool.

It is much easier to check for debris with the Pump off than with the pump on. When you open the pump lid to clean the pump basket, air gets into the system. The pump on your pool is usually self-priming and normally it will have no problem returning to full prime. However, make sure the pump does reach full prime before you leave to do other things.

If you must Prime the pump, you can remove the pump lid, add water to the pump pot (the area where the basket sits), secure the lid, and then turn on the pump. This method can take several attempts if a lot of air got into the system. Usually, if you let the pump sit for an hour or so (not running) with the lid secured, it will obtain prime easier when you turn it on after the air was absorbed into the water. Remember that water cools the internal parts of the pump and you can damage the pump if it gets too hot.