How to raise calcium hardness in a hot tub.
Adjusting spa water hardness.
Controlling calcium hardness helps maintain and assure proper water quality in hot tubs.
The benefit of having correct hardness levels is that it prevents corrosion and keeps water clear.
Hard water is a common issue for spa and hot tub owners but so is soft water.
First rinse the vanishing act calcium remover with running water until the water runs clear.
Add water as needed to keep the spa full.
Luckily low calcium hardness can be easily corrected by adding calcium chloride that can be purchased at any swimming pool store.
Simple water analysis can be used to adjust calcium hardness.
Never mix different chemicals together prior to addition to the spa water.
Make sure your water hardness is not too low.
That s all there is to it.
Just like ph and total alkalinity it s important to keep the calcium hardness balanced to prevent your hot tub water from becoming corrosive or scaling.
Fortunately the easiest way to raise calcium hardness in a hot tub is to you guessed it add calcium to the water.
Test and adjust your spa water balance 2 4 times per week.
Adjust it prior to making final ph and ta adjustments.
In many cases you will find a low calcium reading that can be adjusted by using calcium booster.
However before you attempt to balance your hot tub s.
Pre dissolving granules in a plastic bucket of water is best.
Divide the recommended amount up into three treatments allowing the water to circulate for at least four hours in between.
Did you find the water in your spa is too soft.
The hardness level of spa water measured as the amount of dissolved calcium is also important.
Treating low calcium hardness.
Although there s no practical way to reduce high hardness levels it s easy to increase low levels by adding increase calcium.
A good range for calcium hardness is 150 300 ppm.
Keep the spa clean.
To make any adjustments to calcium hardness you will need a test kit or test strips.
Also if your water is high in calcium this is where you may want to use water that is treated by a softener to fill your spa.
Clean the spa filter every 4 8 weeks and replace every 1 2 years.
Calcium hardness is the measure of how hard or soft your hot tub water is and measures the amount of dissolved calcium and magnesium.
Drain and refill every 3 4 months.
Insufficient calcium hardness can sometimes promote equipment corrosion and also result in water foaming problems.
If you live in one of the purple blue or white areas on the map add a calcium hardness increaser to your spa or hot tub each time you fill with new water.
Add them one at a time.
Allowable parameters lie in the range between 80 200 ppm for hot tubs and spas.
If the calcium hardness level of your spa water is above 75 parts per million then the vanishing act calcium remover is the ideal tool to bring your calcium hardness level down into the okay range.
Air out the spa cover twice per week.
