That usually means high chlorine. Try doubling the amount of chlorine neutralizer on a second test.
pH strips
Add more in smaller amounts and test again.
You should test your pool weekly at the very least and if there has been lots of rain or after a pool party. Liquid testing kits, strip testers, and digital testing kits are the main ways to test your pool water. You should test for total and free chlorine, pH, alkalinity, cyanuric acid, calcium hardness, phosphates, copper, and salt if you have a saltwater pool.
Balance chemical levels - Test the pool to make sure the water is balanced. Test for free chlorine, pH, total alkalinity, calcium hardness, cyanuric acid, and phosphates. After adding the necessary chemicals, allow the filter to run for a day and recheck the pools chemical levels the following day. It might be necessary to take a water sample in to a professional for analysis or have a pool professional out to test the pool if you only have a basic test kit.
to test the acidity or alkalinity of a solution.
a test strip that tests the acidity or alkalinity level of a liquid.
MANY different things. The standard set of strips test for: Chlorine levels Alkalinity levels (pH) Acidity levels (pH) Stabiliser Salinity levels (if testing in salt water chlorinated pools)
you need to bring your alkalinity up first using alkalinity UP
a test strip that tests the acidity or alkalinity level of a liquid.
The accepted range in the pool industry is 80-120 ppm. If using isocyanurate chlorines, 100-140 is more acceptable. The reason is that as cyanuric acid levels increase, the more it gives a false reading on most test kits for Total Alkalinity. Use a Taylor Test Kit and read the instructions, especially the last page where it explains the formula for getting a true TA reading.
Call in the pros. Take a sample of your water in a new, quart-sized Zip-loc bag to your local pool supply store. They can test for many more variables than are available in a home test kit, and will recommend exactly which chemicals you need, and how to use them.
Muriatic acid added to the pool water will not remove stains from swimming pools. Unless you do an acid wash. Something that should be left to an experienced pool tech. Purchase a good test kit that will measure chlorine, pH, alkalinity and conditioner. This test kit will, after the initial test for pH and with a further test, give you amounts of muriatic acid to add to your particular size, in gallons, pool. K