Quote Originally Posted by mdjjpapa View Post
If your theory about the diffusion is correct, then wouldn't in-line chlorinators using these pucks have similar issues? Especially since they are typically even close to the equipment?
Yup. So either my diffusion theory is wrong or such in-line chlorinators have one-way valves to prevent this or they in fact do have similar issues from diffusion, but possibly not from a "blast" of acidity since I think they are placed at the end after the filter and heater, similar to an SWG.