The Hayward EC40 series filter has been around for a long time. I showed up to this pool opening and I was met with a really old and abused EC40 filter and a Hayward Power Flo pump. Here is how the pool opening went:

In this picture you can see me making sure that all of the parts are there to hook up the Hayward EC40 filter and the power flo pump.

Hayward EC40 Filter System Step 1

Making Sure All The Parts Are There

This above ground swimming pool also had a Hayward Offline Chlorine feeder which is the model CL-200.

Hayward EC40 Filter System Step 2

The Hayward Offline Chlorine Feeder

Most of the time pool guys like myself will  put all the drain plugs, gauges and other small parts inside the pump for the winter season, so in the springtime we can easily find the parts and get the pump set up fast. We used to put parts inside of the skimmer baskets but to often they would get knocked around in  the shed or garage and the parts would fall out and then get lost.

Hayward EC40 Filter System Step 3

WeT Head Working On EC40 and Hayward Power-Flo Pump

The pool water was low and was not at “mid skimmer” so it was safe to take off the winter skimmer cover plate. Normally you would want to wait until  you have all the hoses connected but in this case it was OK.

Hayward EC40 Filter System Step 4

Removing The Above Ground Winter Skimmer Plate

You can see after I removed a couple of Philips head screws from the winterizing plate it came right off. You will want to replace the screw you took out when removing the plate and will want to put them back into the skimmer.

Hayward EC40 Filter System Step 5

The Winter Skimmer Plate Is Removed

Once the skimmer plate was removed it was time to hook up the hoses to the Hayward EC40 / Power Flo System. One hose connect from the bottom of the skimmer to the font of the pump. This is the suction side of the swimming pool pump. The other hose is the discharge side of the pump. That hose gets connected from the top of the filter to the pool return on the swimming pool wall. The last connection is the union that is located between the filter and the pump.

Hayward EC40 Filter System Step 6

Tightening The Union On The Hayward Perflex Filter System

Between the filter and the pump on the Hayward Perflex swimming pool filter system is a union that will need to be connected. Once side of the union is connected to the discharge side of the Power Flo pump and the other side of the union is connected to the bottom of the EC40 filter tank. This union just needs to be joined and then tightened.

Hayward EC40 Filter System Step 8

Checking The Chlorine Feeder Hoses For Damage Or Cracks

This Hayward Perflex filter system was also equipped with an offline Chlorine feeder called a “Chlorinator”. There is two connections on this type of chlorine feeder. There is also a direction of flow that will need to be hooked up correctly in order for the chlorine feeder to work right. There is a check valve inside the discharge side of the Hayward Offline Chlorinator that prevents the water from flowing backwards into the chlorine feeder. You will also want to inspect the feeder line for cracks or dry spots. These Chlorine feeder lines often need to be replaced from damage from the sun or the Chlorine.

Hayward EC40 Filter System Step 9

Hooking Up One Side Of The Chlorine Feeder Line

It Turned out that one of the lines on the Hayward Chlorine Feeder was cracked and we did not have a replacement at the time so what we were going to have to do is something called a “by-pass”. You can by-pass the chlorine feeder by hooking the line from the feed and the return on the swimming pool plumbing.

Hayward EC40 Filter System Step 10