Question 1

Do I need reverse osmosis if I already have a water softener in Elfers?

Accepted Answer

A water softener handles hardness, but doesn't remove dissolved contaminants like PFAS, fluoride, nitrates, lead, or pharmaceuticals. For Elfers residents who want the purest possible drinking water, an RO system under the kitchen sink is the perfect complement to a whole-house softener.

Question 2

How much water does a reverse osmosis system waste in Elfers?

Accepted Answer

Our modern RO systems have a 2:1 or 3:1 ratio (2–3 gallons of 'waste' per gallon of purified water). This is much better than older models. The concentrate water can be used for plants or cleaning. Given Elfers's water quality, the trade-off for near-pure drinking water is well worth it.

Question 3

What does reverse osmosis remove from Elfers water?

Accepted Answer

RO removes up to 99% of dissolved contaminants from Elfers water, including: TDS (typically reducing from 300–500 ppm to under 30 ppm), PFAS, lead, arsenic, fluoride, nitrates, pharmaceuticals, chloramines, and virtually all other dissolved substances.

Question 4

How often do I need to change RO filters in Elfers?

Accepted Answer

Pre-filters and post-filters: every 6–12 months. The RO membrane itself lasts 2–3 years with Elfers water (longer if you have a whole-house pre-treatment system). We send reminders and most homeowners can change filters themselves in under 5 minutes.

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Reverse Osmosis System Installation Near Elfers