Testing Pool Water pH

The pH is one of the most important factors in pool water balance and it should be tested and checked at least once every week. pH is the measure of the
balance of acid and alkaline in the swimming pool water.  A pH of 7.0 is neutral - below 7.0 is acidic, above 7.0 is alkaline and should be kept within the range
of 7.2 - 7.6 .

Several brands of chlorine and PH test kits are sold by pool dealers. Buy one that is easy to read accurately and invest in a good one to insure accurate
readings.  First you want to fill the tube with the pool water taken from at least 18 inches below the surface of the water and make sure it is obtained away from
the pump and any outlets.  Wait at least six hours before testing the water if you have added chemicals and make sure the pump is running for that same time.
Always by new test reagents at the beginning of pool season.  Keep children clear of pool chemicals and testing products and never pour tested chemical back
into the pool.

Make  sure you rinse the test tube before using it again. If some of the residue from a previous test is left in the tube then this can give you a faulty reading.  To
obtain an accurate amount of drops of reagents you want to hold the bottle vertically and then squeeze the bottle slowly. queeze slowly

Put the lid that comes with the kit on the tube and shake the tube and shake.  If you cover the tube with your finger the oil in your skin can give an inaccurate
reading.  Match the test colors to the shades on the tube to determine pH or chlorine levels. Ok so now you finished the chemistry part and you notice that the
test colors are to dark or to light. Here is how to correct this.

If pH level is low, mix soda ash granules into pool with pump running. Only use stabilized, organic chlorine products that have been purchased at your local
pool center.

If pH level is high, add one pint of muriatic acid or sodium bisulfate to a bucket of water; add to pool with pump running; allow to circulate overnight. Test PH
next day. Add more muriatic acid or sodium bisulfate if needed, but no more than one pint per day.

If the problems is just cloudy water, this is caused by dirt and other non-filterable wastes, add oxidizing agent or 5-10 times normal daily chlorine dose to bucket
of water. Pour into deep end of pool, run pump for 12 hours and make sure the family stays out of the pool. This cloudiness is also caused by children urinating
in the pool. If using chlorine tablets, buy a chlorine tablet holder that floats on the top of your pool water.

For red-brown iron oxide build-up, follow procedure above, but run pump for 48 hours, then vacuum up particles that have settled on the bottom of the pool. If
none of the above help and you still can't get the test of the pool water accurately then you can always bring your pool water to a professional.
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