Question about Hayward In Line Chlorinator 9 Lb. Capacity for 2" Plumbing

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My Hayward In Line Chlorinator has been great for 20years . I have replaced the cap about five years ago. It is leaking through the top & there is an awful lot of mineral build up inside the canister. If I use vinegar will that help dissolve the build up? Any advise on stopping the leak? Does the quality of puck affect the flow or could it cause blockage. A friend gave me her old pucks & I have used them this last month. There was water at the very top when I opened the canister top. Is that normal or is that a sign of blockage? Is it time for a new unit or can I make this unit last? What is the price of a new one today? Ed

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Nothing will remove the buildup because that is mostly the housing of the unit distorting over time with the chlorine inside. Puck quality has a bigger effect on water chemistry than the chlorinator itself though cheap imported pucks are likely to stain the inside of the chlorinator just like they often do to the pool. A new inline chlorinator is about $90 so I would assume it is better to buy a new one than to try and repair a worn out 20 year old one...just my opinion.

John

Posted on Sep 12, 2010

Testimonial: "Thanks John. I did not know the chlorinator was self destructing. Ed"

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1 Answer

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A CL200 Involves direct injection of chlorine into the pool. Water passes through the chlorinator and goes to the pool with chlorinated. WIth the 200 (Not the 220) I've only seen a handful with problems over the years with chlorine not dissolving. If the chlorinator is not leaking, and the control valve is moving freely here's what I'd recommend.

1. Are you using a new type of tablet?
If so remove the tablets and place into a floating chlorinator.*** WARNING Wear Rubber Gloves, while handling wet tabs****
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If the chlorine is dissolving in the floater but not the chlorinator it could be one of the following.
1. Make sure the direction on the chlorinator is correct inlet (from Filter) to outlet (to pool)
2.. In some of the newer 200 chlorinators there is a built in check valve you can see it in the bottom of the chlorinator You will notice a threaded piece in the bottom that contains a white plastic ball the size of a pea. If this ball does not move freely to the touch, odds are the filler in your chlorine has clogged it from moving, thus preventing the flow of water from dissolving the chlorine.
You can check this by removing the chlorinator from the pool, removing the lid and pouring water directly into the top. If you do not see water passing through to the "Outlet" side of the chlorinator a clog is most likey your problem.
I've seen clogs cleared with wire coat hangers and hot water. Be forewarned that hot water being poured into a chlorinator will cause the any residual chlorine to gas off, make sure you do not have you face over the chlorinator when you add the hot water and you do so in a very well ventilated area. A straightened wire coat hanger can be used to dislodge any obstruction in the check valve and "get the ball rolling again"

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