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Top 3 Pool Chlorinator Problems
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Top 3 Pool Chlorinator Problems
by Rob Cox, October 3, 2011

Top 3 Pool Chlorinator Problems

offline chlorinator install
Pool Chlorinators, are very simple devices. They simply allow water to flow over the tablets or sticks, adjusted by a dial on the side of the chlorinator. Most will hold around 9 lbs, or enough chlorine to last 2 weeks for the average size swimming pool.

Pool Chlorinators can be installed either Off-Line or In-Line. Off-Line chlorinators use a flexible hose or rigid pipe to carry water to and from the chlorinator chamber. Drill two small holes in your pvc plumbing, one before the filter and one on the return line, clamp on the fittings, and attach the hoses.

inline pool chlorinatorIn Line Chlorinators are plumbed in to the pvc piping. This is a little more complicated to install, but typically have fewer problems with hoses or fittings clogging. To install an in-line chlorinator, cut a small section out of the return line, and with the use of some plumbing fittings and pvc glue, the chlorinator is installed, preferably in contact with the ground.

In many cases, there is simply not a suitable location for an in-line chlorinator to be installed. Perhaps there is not enough of a straight run of pvc (need about a foot), or no area that would allow for easy access to the chlorinator to fill with chlorine tablets. In these cases, an offline chlorinator may be your best bet.

Now, let's take a look at some of the problems that a pool owner may have with chlorinators.

1. My Chlorine Tablets are not dissolving!
     - If an Off-Line chlorinator, make sure that the unit is not installed with the hoses backwards.
     - If an Off-Line chllorinator, check the injection fittings where the hoses attach. Clean with water and a paperclip.
     - Is the dial on the side of the chlorinator turned up all the way?
     - If the return line has a bypass valve for the heater, is enough water flowing through the chlorinator?
     - An air lock may exist. With chlorinator lid removed, turn on filter pump. Screw on lid after it fills with water.
     - Open the chlorinator and look for the area where water enters the chamber, inspect for calcium build-up.

2. My Chlorine Tablets are dissolving, but very s-l-o-w-l-y!
     - If an Off-Line chlorinator, check the injection fittings where the hoses attach. Clean with water and a paperclip.
     - Is the dial on the side of the chlorinator turned up all the way?
     - If the return line has a bypass valve for the heater, is enough water flowing through the chlorinator?
     - An air lock may exist. With chlorinator lid removed, turn on filter pump. Screw on lid after it fills with water.
     - Open the chlorinator and look for the area where water enters the chamber, inspect for calcium build-up.

3. My Chlorinator lid is very tight, leaking or won't fit properly.
     - Check the lid o-ring. It may be distended, or larger than intended.
     - Lubricate the lid o-ring regularly. Use Silicone lubricant only.
     - Check the lid for calcium deposits. Remove with small screwdriver.

There are undoubtedly other problems that may pop-up, but these are the biggies. Another more un-usual complaint is that the chlorine tablets are dissolving, but the chlorine reading is non-existant. In this case, either there is a very large chlorine demand in the pool, and you need to just add more tablets, or the level of Cyanuric Acid, aka Conditioner or Stabilizer, is high enough (over 100 ppm) that a chlorine lock is created.

Using a erosion feeder by Hayward, Pentair or CMP is the best way to use chlorine tablets or sticks. Floaters in the pool are less desirable for many reasons, but better than putting tablets in the skimmer basket (please don't do this!).

 

 

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