PCTI Certification

Pool pH Adjustment Tool

The pH – Alkalinity Adjustment Tool is an incredibly accurate tool for adjusting pH and total alkalinity up or down in swimming pools. In the past, you had four choices for making adjustments to pH and alkalinity:

• Guess an amount of chemical to add, wait for thorough mixing and retest the water in 1-4 hours to see what it did
• Make an Acid or Base Demand Test to determine the amount of acid or base by counting drops, looking up the amount in a table, and then adding it. But this only makes the pH 7.5 and does not tell you what the new alkalinity will be after the addition
• Calculate the amount of alkalinity increase or decrease, add the chemical dose, wait for mixing, and then see what the new pH is
• Use an app or water analyzer that supposedly gives correct chemical amounts but only gives an amount for pH or alkalinity adjustment

None of these methods are acceptable or accurate and they require waiting and retesting.

Now with the pH – Alkalinity Adjustment Tool, just input the pool volume and water conditions and it calculates the exact amount of chemicals to add to reach either a Target Alkalinity (and it provides you with a new pH) or to reach a Target pH (and it provides a new Alkalinity). We call this pH Priority and Alkalinity Priority.

Pool Chemical Dose Calculator

Pool Chem Dose Calculator is a pool calculator that will calculate the exact chemical dose needed for 38 chemicals in 11 categories for any size pool in US Imperial or Metric measures.

To use it you enter the pool volume in gallons or liters, choose US Imperial or Metric, select which item you want to change from the drop down list and then enter the desired change in ppm or mg/l. Pool Chem Dose Calculator then lists all of the chemicals that can be used for that item change and the doses for each one.

Pool Drain Percent Calculator

The Pool Drain Percent Calculator is used to determine the percent or fraction of water to be drained to reach a Target for a specific condition in the water.

When is this needed? A condition in the pool is too high and you need to drain some water. However, the make up or source water also has some level or concentration of that condition in it. How do you figure out how much to drain from the pool and end up with the desired Target?

Using the Pool Drain Percent Calculator, you enter the condition in the pool water, then enter the Target or Desired level in the water—and, finally, enter the level or concentration of the condition in the source or make up water.

Pool Borate Start Up Calculator

The Borate Pool Start Up Calculator was developed by expert chemist, Robert Lowry primarily for professional service technicians for starting up a new plaster, quartz, exposed aggregate, pebble, or cementitious pool surface, but it can also be used for any pool surface including vinyl, fiberglass, acrylic, polyethylene, or stainless steel.

The Borate Pool Startup Calculator is a step-by-step, 7-day procedure for starting up a new pool or a recently remodeled pool that calculates a chemical dose for each of the steps for each day based on water pool volume, water tests made each day before chemicals are added and compared to Target values. Exact chemical doses are given. It also provides a record of all chemicals used, amounts added, the order of addition, and date of completion for future reference.