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If you have a TDS meter we still recommend color changing resin as it will let you know when to monitor your TDS meter for when TDS starts creeping through the DI resin
analytical lab grade glass test vials
500+ gph (28
A heater is only as good as the controller telling it when to turn on and off
26 US gal) of seawater
Focustronic Alkatronic Ph Probe Carbon Dosing If you have a TDSA lab grade pH probe for the Focustronic Alkatronic. It is recommended to replace the pH probe every 18 months for optimal performance.
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