Do we finally have a chlorine puck that won't increase our CYA? Cal-Hypo Tablets/pucks!?!

[hutson haven]

I think these must be new. HTH Brilliance Chlorine Tablets made with 48.4% Calcium Hypochlorite! Do we finally have a chlorine puck that won't increase our CYA? What do you say TFP? I know Calcium Hypochlorite can increase calcium hardness, and slightly increase pH, but it might be a really great solution for those of us without a SWG during vacations or times we can't add daily liquid chlorine. Any other precautions or concerns about it?

I found it at Walmart online, here is the link if you want to check it out. here

Robot or human?

 

[Bperry]

I think these must be new. HTH Brilliance Chlorine Tablets made with 48.4% Calcium Hypochlorite! Do we finally have a chlorine puck that won't increase our CYA? What do you say TFP? I know Calcium Hypochlorite can increase calcium hardness, and slightly increase pH, but it might be a really great solution for those of us without a SWG during vacations or times we can't add daily liquid chlorine. Any other precautions or concerns about it?

I found it at Walmart online, here is the link if you want to check it out. here

Robot or human?

They aren’t new. When calcium builds up high enough, the only way to solve that is draining…just like with CYA. The normal pucks are fine for vacations without adding calcium which can cause scaling when it’s gets too high.

 

[Donldson]

That entire $40 bucket is 4.75 pounds and will add 21 ppm FC to a pool your size. Compare that to trichlor which requires 2.5 pounds to do the same and would run about $10-15. If you're just using it for vacation it's unlikely avoiding the extra 13 ppm CYA would be worth the cost.

Also note if you ever use it that it cannot be placed in a feeder or floater that has EVER had trichlor in it. Cal-hypo can be very reactive and every year someone joins to ask why their feeder full of cal-hypo exploded.

 

[hutson haven]

That entire $40 bucket is 4.75 pounds and will add 21 ppm FC to a pool your size. Compare that to trichlor which requires 2.5 pounds to do the same and would run about $10-15. If you're just using it for vacation it's unlikely avoiding the extra 13 ppm CYA would be worth the cost.

Also note if you ever use it that it cannot be placed in a feeder or floater that has EVER had trichlor in it. Cal-hypo can be very reactive and every year someone joins to ask why their feeder full of cal-hypo exploded.

Thank you for the great explanation, I am always looking to learn more and save $. Plus I would have absolutely used the same floater without even thinking about it, so thanks for that! I am curious as to how you figure out that 4.75 pounds and will add 21 ppm FC to a pool my size. What's the formula you use to determine that it may come in useful when comparing products in the future? THANKS

 

[hutson haven]

They aren’t new. When calcium builds up high enough, the only way to solve that is draining…just like with CYA. The normal pucks are fine for vacations without adding calcium which can cause scaling when it’s gets too high.

good to know, my calcium level is sitting at 175ppm currently so I have some room on that aspect. Thanks !

 

[Donldson]

I am curious as to how you figure out that 4.75 pounds and will add 21 ppm FC to a pool my size.

PoolMath

There is an "Effects of adding chemicals" section that you can enter a chemical and an amount and it will tell you what it will do to your levels.

 

[YippeeSkippy]

Keep in mind, Hutson Haven, that vinyl pools don't need ANY calcium, so it's not a chem level you would normally need to worry about (Unless you have a heater, bychance?)

 

[PoolAdmiral]

I would think that If your calcium is above normal levels then you’d probably want to use Tri Chlor tabs and only add slight increase in CYA. But if your CYA is already elevated then maybe the Calcium/Chlorine tabs would be best.