Home
Pool Store
Donate
The Pool Blog
Ask The Expert
Pool Q&A Forum
News & Views
Maintenance Pool Start Up
Winterization
Pool Chemistry
Problems
Pool Algae
Clear It Up
Pool Tips
Pool Chemicals
Pool Heating
Pool Accessories
Pool Filters Sand Filter
Cartridge Filter
DE Filter
Pools N' Stuff Cost & Financing
Inground Cost
Aboveground
Kinds Of Pools
Inground Liner
Pool Cover Info.
Solar Covers
Pool Paint
Party & Games
Pool Toys
Pool Landscape
Pool Routes
Health & Safety SPF Clothing
Sunscreen
Swimming Safety
Swimmer Health
Safety Net
Child Fence
Misc. Privacy Policy
Write Your Article
Submit Questions
About Me
Interviews/Articles
[?] Subscribe To This Site

XML RSS
Add to Google
Add to My Yahoo!
Add to My MSN
Subscribe with Bloglines

 

Soft Water Fill On Salt Water Pools

by Jed
(Santa Ana, CA)

In an effort to keep the calcium hardness levels down in pools where we have filled the pool initially with 16 grain water, could I use a water softener for the make-up water?

That way the hardness levels would stay at the same level and not climb and cause all the scaling problems.




Thanks for the question Jed

In answer is yes you can use a water softener to help lower the hardness level, but it may take some time and alot of salt.

You need to measure the flow rate of the line going from the water softener to the pool. Use a 5 gallon bucket and time how long to fill it up. Convert that to gallons/minute.

Then you should know the hardness of pool water and the soft water capacity of the water softener.
It's easiest to calculate if both are in "grains".

I believe it's this:

PPM = 17.1 X Grains. So if your water test shows 600ppm of hardness, that equals 600/17.1 = 35.1 Grains/Gallon.

So if your softener has a capacity of 35,000 grains, it means it can remove the hardness from about 1,000 gallons of pool water.

You then take the flow rate of your water softening system and calculate how many hours it will take to run 1,000 gallons to the pool.

For a normal flow rate of 5 gallons per minute, that would be 300 gallons/hour. It would take a little over 3 1/3 hours to soften 1,000 gallons to zero. You probably won't get to zero, but probably pretty close.

I don't know if you needed all of that to answer your question, but I wanted to give you more than you asked for so you could have a timeline to do your pool water softening.

To post a reply, or if you have a similar question, you can see your post on the Q&A page in the "Salt Water Pools" category.

Swimming Pool Questions and Answers

Check back to this post for updates or answers.

Hope this helps and have a great Summer.

Robert

Click here to post comments.