How long can you stay at shock level before it eats away you liner, pump and heater?

[FernTheBrute]

Title says it all.... With a normal Ph, using liquid chlorine on a vinyl pool, how long could I stay at shock level (considering the cya / chlorine ratio, so let's say 20ppm for 50 CYA) before it starts to shorten the lifespan of equipment?
I can't imagine it's without any effect on the liner longevity?

 

[PoolStored]

SLAM level FC is safe for people, equipment and pool. It is actually quite harmless to vinyl liners...so, as long as you get your CYA right, SLAM'ing your pool at TFP suggested levels will not harm your liner.


Sun does the most damage to pool liners.

 

[FernTheBrute]

SLAM level FC is safe for people, equipment and pool. It is actually quite harmless to vinyl liners...so, as long as you get your CYA right, SLAM'ing your pool at TFP suggested levels will not harm your liner.


Sun does the most damage to pool liners.

I really wouldn't have tought its safe for people too. I'll go to bed a bit wiser

 

[PoolStored]

I really wouldn't have tougher its safe for people too. I'll go to bed a bit wiser

HUH? Don't understand this statement. tougher=thought?

SLAM level and below is safe for swimmers...as long as you can see the bottom of the deepest end of the pool.

There is ~40% less HOCL in a pool with CYA of 50 and FC of 20 (.25ppm)[Red Line], than CYA of 0 and FC of 1 (.4ppm) [Green Line].

Sleep safe.

 

[sande005]

As far as I understand, a fair amount of the Cl is "bound" to the CYA, leaving only a smaller amount as "active". Our tests measure the total - bound up and active. But, as the amount of active gets used up, some of the bound Cl gets released from the CYA in order to maintain equilibrium. There is a limit to how much - but it does help reduce the swings that occur during the day. So it seems like the level is very high, but it generally really isn't. Which, I think, is the gist of PoolStored's chart.