Reverse-osmosis Units
Reverse-osmosis Units | Water Purification | Plumbing | Athens
Craving crystal-clear, great-tasting water straight from the tap? HEP’s team brings the power of reverse-osmosis units to Athens homes and businesses, stripping away minerals, chemicals and lingering odours in a single, sleek installation. Our systems channel multiple filtration stages into one compact module, delivering restaurant-quality hydration without plastic bottles or bulky dispensers—perfect for cooking, coffee, or that after-workout refill. It’s next-level water purification you can see and taste, every time you turn the faucet.
From the first on-site survey to annual check-ups, our licensed plumbers handle everything with trademark Greek hospitality and precision. We custom-fit pipework to your kitchen layout, use only NSF-certified components, and back every installation with clear maintenance plans and responsive support. Count on HEP to make pure water effortless—so you can raise a glass to health, sustainability, and the simple joy of knowing your water is as clean as it gets.
FAQs
What contaminants can a reverse-osmosis (RO) unit remove from Athens’ municipal water supply?
RO membranes are capable of rejecting 90–99 % of dissolved salts, heavy metals (lead, arsenic, chromium), nitrates, fluoride, pharmaceutical residues and micro-organisms larger than 0.0001 µm. While Athens’ tap water is generally safe, many residents are concerned about residual chlorine by-products, limescale‐forming hardness, and occasional taste or odor issues. An RO system coupled with carbon pre-filters effectively addresses all of those contaminants, delivering bottled-water quality straight from the tap.
Do I need additional pre-filtration for Athens’ relatively moderate-hard water?
Yes. Although Athens’ water hardness (≈24–28 °F/°dH) is lower than many regions of Greece, it is still high enough to cause membrane scaling over time. A two-stage pre-filtration cartridge—typically a 5 µm sediment filter followed by an activated carbon block—removes suspended particles, chlorine and chloramines, protecting the RO membrane and extending its life. If your incoming hardness regularly exceeds 30 °F, we recommend adding an antiscalant or softening cartridge before the RO module.
How often should I replace the RO membrane and filter cartridges in Athens?
Service life depends on water quality and daily consumption, but typical schedules for an Athens household using 150–200 L/day are: • Sediment & carbon pre-filters: every 6–8 months • Post carbon (taste/odor) filter: every 12 months • RO membrane: every 24–36 months You can verify membrane health with a handheld TDS meter—when the rejection rate drops below 80 % (e.g., feed water 400 ppm, product water >80 ppm), it is time for replacement.
Will installing an RO system reduce water pressure at my kitchen tap?
Under-sink RO units store purified water in a pressurized holding tank, so you will notice only a slight drop compared with raw municipal pressure. Typical delivery pressure from the RO faucet is 1.5–2.5 bar—enough for filling pots or carafes quickly. If your apartment building already has low pressure (<2 bar), we can integrate a booster pump that keeps the RO membrane operating efficiently without affecting the rest of your plumbing.
Can an RO unit be fitted under any sink in Athens apartments, or are there plumbing restrictions?
Most kitchens and bathroom vanities in Athens have enough space for a compact 5-stage RO system with a 7–12 L pressure tank (30 cm Ø × 40 cm H). We connect the feed line with a self-piercing valve on the cold-water pipe and route the reject (waste) line to the existing drain using a saddle clamp. No building permits are required. For listed neoclassical buildings with fragile piping, we may use non-invasive compression fittings; our team performs a free on-site survey to confirm compatibility.
Is RO water safe—and advisable—for cooking, baby formula and houseplants?
Yes. Purified RO water meets WHO and EU drinking-water guidelines. For cooking and beverages, it prevents scale buildup in kettles and coffee makers and improves flavor. Pediatricians generally approve RO water for baby formula as long as it is freshly dispensed and the system is properly maintained; the lower mineral content aids precise formula mixing. For houseplants, RO water eliminates fluoride and excess salts that can scorch leaves, but you may wish to supplement with a balanced fertilizer to replace calcium and magnesium that plants normally receive from tap water.