How hard water affects heaters, jets, surfaces and pool or spa technology.
Where scale appears
Scale often forms on waterlines, heaters, jets, covers and technology where warm water and high pH increase precipitation.
What to monitor
Check pH, alkalinity and calcium hardness. Keeping pH stable is one of the simplest ways to reduce scale risk.
Protect the equipment
Use prevention products when needed, clean filters and surfaces regularly and ask a service company if heaters or pipework already show heavy deposits.
Original Czech source: Tvrdá voda a vodní kámen: jak chránit bazén, vířivku a technologii
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