Zodiac EL35 Chlorinator

The EL35 (product code WW000265) produces more chlorine per hour than the EL25 and is built for larger and more heavily used residential pools. If your pool sits in full sun, gets heavy family use, or is on the larger side, the EL35 is the right call. Undersizing shows up in January when chlorine will not hold. Give us your pool volume and we will confirm.

A higher output chlorinator reaches the required chlorine level in fewer running hours, which means less pump run time, lower power consumption and less strain on the cell. It also gives you headroom when demand spikes after hot weather, heavy rain or a busy weekend, rather than leaving you dosing manually to catch up.

Cell life is driven by water balance and total running hours, not by the calendar. Cells are consumable and replaceable. The most common causes of premature cell failure we see in Auckland are high calcium hardness and pH left to drift, both of which scale the plates. Regular servicing addresses both.

Salt needs to sit within the range specified for the unit. Too low and chlorine production drops while the cell works harder, too high and you risk corrosion of some fittings and surfaces. We test salt levels at every service visit and correct as needed, which keeps the chlorinator in its efficient operating window.

That is exactly what it is built for. Chlorine demand rises sharply with UV, water temperature and bather load, and Auckland summers hit all three. The EL35's higher output gives the margin to hold sanitiser levels through peak season on a pool where an EL25 would be working at its limit.

Less often, but yes. A chlorinator manages sanitiser, not water balance. You still need to manage pH, alkalinity, calcium hardness and stabiliser, and occasional shock dosing after heavy use or storms. Our valet service handles all of this so the chlorinator does its job and the water stays right.

We do. A chlorinator is hardwired 240V equipment requiring a registered electrician under New Zealand rules. Sparkling Pools has a qualified electrician on the team, so plumbing into the return line, electrical connection, salt dosing and commissioning are handled together.

Inspect the cell periodically for scale build up and clean it as recommended rather than aggressively, since over cleaning shortens cell life. Keep water balanced, maintain correct salt level, and keep the power supply unit dry and ventilated. Our service customers have all of this handled on a scheduled basis.

A manufacturer backed warranty applies, with terms set by Zodiac. Cells are generally covered separately from the power supply, which is standard in this category. Your purchase is also covered by the New Zealand Consumer Guarantees Act. We register the warranty and act as your local point of contact for any claim.

Because the chlorinator is only one part of a system, and it will only perform if the salt level, water balance and pump run times are right. We have kept Auckland pools clear since 1992. We size it, install it with a qualified electrician, commission it properly and can maintain it for you. Call 09 570 4797.