Reverse-osmosis Unit
Reverse-osmosis Unit | Water Purification | Plumbing
Imagine turning on the tap and tasting pure, refreshing water every time. HEP’s reverse-osmosis unit strips away up to 99% of dissolved solids, chemicals, and unpleasant odors, sending only clean H₂O through sleek, professionally installed plumbing lines. With compact under-sink placement and whisper-quiet operation, this system delivers the confidence of certified filtration without sacrificing kitchen space or style—perfect for families, foodies, and anyone serious about water purification.
Backed by licensed technicians and a rock-solid warranty, HEP makes installation effortless: quick scheduling, transparent pricing, and meticulous workmanship that respects your home. Experience brighter coffee, crisper produce, and longer-lasting appliances, all while reducing plastic waste and utility costs. Ready for a noticeable difference in every sip? Reach out today and let HEP elevate your home’s standard of clean.
FAQs
What is a reverse-osmosis (RO) system and how does it purify water?
A reverse-osmosis system pushes tap water through a semipermeable membrane that has microscopic pores (≈0.0001 micron). Most dissolved salts, heavy metals, fluoride, nitrates, PFAS, and microorganisms are rejected and sent to drain, while the purified permeate water is collected for drinking or cooking. Pre-filters (sediment and carbon) remove larger particles, chlorine, and organics before the membrane, and a post-filter polishes taste and odor before the faucet.
How is an RO unit typically plumbed into my kitchen?
The compact RO module is mounted in the sink base cabinet. The cold-water supply line is intercepted with a feed-water adapter valve that sends pressurized water to the pre-filters. Purified water exits the membrane and fills a 2–4 gal (8–15 L) storage tank. From the tank, a ¼-in tubing line runs to a dedicated RO faucet installed on the sink or countertop; an optional tee can connect to the refrigerator ice maker. Waste (concentrate) water travels through separate tubing to a special saddle valve that taps into the sink drain above the P-trap.
How much water does an RO system waste?
Standard residential units have a 3:1 to 4:1 waste-to-pure ratio—meaning 3–4 liters of concentrate drain for every liter of drinking water produced. High-efficiency (water-saving) models with permeate pumps or 1:1 membranes can cut the ratio to 1:1 or even 1:0.5. Installing the unit on soft water, keeping feed pressure 50–80 psi, and changing filters on schedule all help minimize wastewater.
How often do I need to replace filters and the membrane?
• Sediment pre-filter: every 6–12 months, depending on turbidity. • Carbon pre-filter(s): every 6–12 months to protect the membrane from chlorine/chloramine. • RO membrane: usually 2–5 years; longevity depends on feed water quality, pressure, and maintenance. • Post-carbon (taste/odor) filter: every 12 months or when taste changes. Following the manufacturer’s schedule preserves water quality and prevents premature membrane failure.
Can an RO system remove all contaminants, and will it make my water completely pure?
RO membranes remove 90–99% of total dissolved solids and are effective against most ions (lead, arsenic, fluoride), pesticides, pharmaceuticals, and micro-organisms. Combined with carbon filtration, they also tackle chlorine, chloramine, VOCs, and PFAS. However, they do not remove some dissolved gases (e.g., CO₂) or neutral molecules such as certain pesticides. For nearly 100% purification, systems may add a UV sterilizer or remineralization stage. The produced water meets or exceeds World Health Organization and NSF/ANSI 58 standards for drinking water.
What maintenance or troubleshooting steps should I know about?
1. Sanitize the system yearly: empty the tank, add food-grade sanitizer, and flush. 2. Check tank pressure: with no water inside, the air bladder should read 7–8 psi; adjust with a bicycle pump. 3. Inspect tubing and fittings for leaks; use locking clips and replace worn O-rings. 4. If flow rate drops, verify incoming water pressure, replace clogged filters, or test membrane rejection with a TDS meter. 5. Listen for continuous draining sounds—this may indicate a failed automatic shut-off valve or low tank pressure. Routine checks keep the unit efficient, quiet, and longer-lasting.