Calcium Hardness In Pool Is Low

When water is too hard white scale forms on equipment and pool surfaces.

Calcium hardness in pool is low.

If you re faced with a re plastering job on your pool you ll realize. The role of calcium hardness in water balance. Current industry standards call for maintaining calcium hardness in the ideal range of 200 400 ppm in pools and 150 250 ppm in spas. Calcium hardness should be tested regularly using test strips or reagents.

The recommended range is 150 400 ppm parts per million with an often cited stricter range of 200 400 ppm. These are symptoms of swimming pool water that is unbalanced. Rain or melted snowthat finds its way into your pool can reduce the calcium hardness as water from rain and snow is naturally soft water and lacks calciumor magnesiumdissolved in it. Recommended range for pools is between 200 400 ppm.

When it is too soft equipment. In addition to phand total alkalinity calcium hardness must be kept in balance so that your pool water does not become too corrosiveor end up scalingthe surface of your pool. Swimming pool calcium hardness must be managed to maintain balanced pool water. The ideal reading for calcium hardness in pool water is about 200 to 400 parts per million.

Water with a calcium hardness above 300 ppm mg l is described as hard water. The most common cause of low calcium hardness is the introduction of water that has fewer minerals dissolved in it. Low calcium levels in a plaster pool will cause the water to draw calcium directly from the plaster causing it to pit become rough and eventually crumble. Calcium hardness must be actively managed along with ph and total alkalinity to keep water in proper chemical balance.

With sufficient levels of calcium dissolved the aggressive nature of water is tamed and will help prevent the leaching out of certain substances in pool equipment. Soft water can draw lime out of tile grouting and the concrete of cast pools which can lead to disintegration. But what it depends on isn t that difficult. Hard water can cause lime to be precipitated.

Hardness on the other hand is a measure of the calcium and magnesium in the water. Water with a calcium hardness of less than 100 ppm mg l is described as soft water. Although soft water is desirable in everyday home use calcium hardness is necessary in pool water. If you have a concrete or plaster pool keep the level between 200 ppm and 275 ppm.

If your pool has a vinyl or fiberglass liner the calcium hardness level should be between 175 parts per million ppm and 225 ppm. Having the calcium hardness out of range can lead to problems with water quality and equipment damage.