I've been using an IntelliChem connected with an IntelliChlor and an acid/tank pump for a number of years
I continue to have problems with the SHURflo Pump head (acid pump on the side of the intellichem controller) failing early. Instruction say to replace the pump head every year. I've never had one last longer than 8 months and 6 months is the norm.
The early pump head failures seem to be getting worse. In March I replaced the pump head and now (Jun) the spring in the pump is already showing considerable rusting. In my experience this means the pump will fail in a month or two.
Are there better designed acid pumps available that don't require as frequent and expensive maintenance?