I installed a Pentair IntellipH system (part # 521377) about 18 months ago. It has been working great and, because of the outstanding advice on this website, I bought a replacement pump head (Pentair part # 521514). This year, while doing my "spring cleaning" of the pool, I noted the original pump head was badly corroded so installed the replacement unit. All appears to be fine but, when I went to order another replacement pump head online, several retailers stated that the item was "discontinued by the manufacturer."
I checked the Pentair website and the owners manual for the "new" IntellipH (after 8/2014) definitely shows a different pump head. From the photos in the owners manual it appears that it should be a direct replacement for the older-style unit. Does anyone know if the "new" pump head design will fit the older IntellipH canisters? I've tried contacting Pentair (both via email and phone) but have gotten no response.
Thanks for your help!