This question is for Gary Slusser and Akpsdvan.
What constitutes an oversized softener which leads to channeling? What are the parameters of an oversized softener which leads to channeling?
Most literature charaterizes softener size either on the basis of flow per cubic foot of resin or flow per square foot of tank size. Residential flow rates are variable--from a gallon or two per minute for a single faucet to ?? depending upon the number of fixtures and size of piping. So how does one determine when a softener is oversized?