If hardness appears early at the softener outlet, the problem usually lies not in the resin itself but in the water reaching it and in the regeneration settings.
Softening rests on retaining the calcium and magnesium ions that cause hardness on a resin. When the resin becomes saturated it is regenerated with brine and the cycle begins again. In a healthy system that cycle can repeat for a long time.
Loss of resin capacity usually arises not from a single cause but from cumulative effects.
The clearest sign is hardness appearing at the outlet earlier than expected. If the regeneration frequency has risen and salt consumption has climbed, the resin is losing capacity.
Recording these values at periodic inspections keeps the replacement decision out of the realm of guesswork.
The deformed resin is emptied out, new resin is installed and the system is recommissioned. Getting the regeneration settings right during commissioning directly affects how long the new resin lasts.
Reviewing the pretreatment before the replacement prevents the same problem from returning before long.
Membrane replacement is decided by data, not by the calendar. The five indicators we look at in the field and what each of them means.
View →In cooling water it is usually unnecessary to filter the full flow. The points that decide between side-stream and full-stream filtration.
View →Membranes are delicate structures and the cause of fouling is not always the same. The fouling we see in the field falls into three main groups; the remedy changes with that distinction.
View →Read flow and conductivity together and they point to the source of the damage with surprising clarity. Three typical patterns and the problem each one indicates.
View →The cleaning decision looks not at the calendar but at three measurements: differential pressure, permeate conductivity and production flow. The threshold values, and what to do after a long shutdown.
View →Silica is one of the most dangerous minerals for a membrane and it occurs in water in two different forms. The precaution differs for each.
View →An antiscalant is chosen from an analysis, not from a catalogue. The two decisive parameters, and why the projection calculation must not be skipped.
View →The short answer: yes, and irreversibly. Membranes have a low tolerance to chlorine and the damage cannot be undone by cleaning.
View →Activated carbon and SMBS dosing are the two ways of neutralising free chlorine ahead of a membrane. When to prefer which.
View →Let us size the system together; we will survey the site in person if needed.
