My ozone safe check valves came in this week and I changed out my old non ozone safe valves and T fitting which is also non ozone safe.
I took several pictures of my process and I also replaced my C02 check valve from Tetra that is not C02 approved.
You can see all the residual crude that built up on the valve, had I not replaced it soon it would be sealed as I could hardly force air through it.
MG
These check valves are really big...
Check out the proof on ozone/C02 safety
The most talked about ozone safe T fitting
Look out the difference in ozone safe vs non ozone safe
Connection to Deltec skimmer
Make sure you use ozone safe norprene tubing
Replaced with safe C02 check valve
Look closely at the mineral deposit on this non approved C02 valve
You can clearly see the deposit here