How long do the filters last—and when do I need to replace them?

The TAC® scale prevention cartridge lasts up to 3 years (about 250,000 gallons). The radial flow carbon block needs replacement every 6–12 months (or around 50,000 gallons).

Do I need a backup drain or power for this system?

Nope—HydroTAC is designed with simplicity in mind. It needs no drain connection, no electricity, and no salt. Just connect it and you're good to go.

Does this actually help with hard water and scale buildup?

Absolutely. TAC® technology has been shown to prevent up to 99.6% of scale formation, extending the lifespan of your appliances, water heater, and plumbing.

What contaminants does it reduce?

The activated carbon filter targets chlorine, odors, rust, pharmaceuticals, pesticides, and common PFAS chemicals—leaving your water fresher and safer.

(After Install) My water still feels “hard” — is something wrong?

The HydroTAC system doesn’t remove minerals like a traditional salt softener — instead, it changes their form so they can’t stick to surfaces. Your water will still contain calcium and magnesium (which is good for health), but you should notice less scale buildup on fixtures, glassware, and appliances. If you see no improvement after 2–3 weeks, check that your filter cartridges are installed correctly and your water meets the required specs.

(After Install) I’m noticing reduced water flow — what should I check?

A drop in flow usually means the carbon filter is nearing the end of its life. First, confirm that your shut-off valves are fully open. Then, check the carbon cartridge for clogging from sediment or debris. If it’s been 6–12 months since the last change (or you’ve used close to 50,000 gallons), replace the cartridge and flush the system as directed.

System Support Water Flo 800 GPD High Efficiency Tankless RO System

You’ve made a great choice.

Here’s everything you need to get started and keep your water clean.

🎉 Welcome to Your HydroTAC Whole-Home System!

Congrats on your new water system!

You’ve just upgraded your entire plumbing system with an eco-friendly, salt-free solution that treats hard water without the hassle. The HydroTAC system uses groundbreaking Template Assisted Crystallization (TAC®) technology to transform minerals into harmless crystals (no salt, no chemicals, no mess). I

ts compact, dual-filter design pairs activated carbon for contaminant and PFAS reduction with TAC® to protect your pipes and appliances from scale—keeping beneficial minerals intact. With easy installation and unsurpassed efficiency, you’re set for softer, cleaner water from every faucet!

Owners Manual

For full installation and maintenance details, be sure to check out your Owner’s Manual below.

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