Zwembad en spa Services

Green pool water is almost always caused by an algae bloom triggered by low chlorine, poor circulation, or a clogged filter. Left untreated, algae can stain surfaces, damage equipment, and make the pool unsafe for swimming. A pool technician tests the water chemistry, shock-treats the pool, brushes and vacuums algae deposits, and balances pH and sanitizer levels to restore clear water.

When the pool pump stops running, water circulation and filtration halt completely, allowing bacteria and algae to multiply within hours. The cause may be a tripped breaker, a burned-out motor capacitor, a seized impeller, or a failed motor winding. A pool technician diagnoses the electrical and mechanical fault, replaces worn components such as the capacitor, seal, or motor, and verifies the pump restores proper flow and pressure.

A torn or punctured vinyl pool liner causes steady water loss, undermines the pool deck as saturated soil shifts, and allows algae to grow behind the liner where it cannot be treated. Tears occur from age-related brittleness, sharp objects on the pool floor, chemical imbalances that degrade the vinyl, or ice damage during winter. A pool and spa technician locates the tear with dye testing, patches small punctures underwater, or measures and installs a full replacement liner when the damage is too extensive to repair.

Green pool water is caused by algae growth, typically from insufficient chlorine levels, poor filtration, or unbalanced pH. While mild cases can be treated with shock treatment and brushing, severe algae blooms may require professional intervention including draining, acid washing, and chemical rebalancing. A pool technician can restore water clarity and set up a maintenance plan.

A pool pump that won't start, makes unusual noises, or doesn't circulate water properly can quickly lead to algae growth and unsanitary conditions. Common causes include a burnt motor, clogged impeller, air leak in the suction line, or a tripped breaker. A pool and spa technician can diagnose and repair or replace the pump.

A pool pump that runs but fails to prime cannot circulate or filter the water, leaving the pool vulnerable to algae growth and chemical imbalances. Common causes include an air leak in the suction line, a clogged impeller, a cracked pump lid, or a low water level in the pool. A pool technician inspects the suction plumbing for air leaks, clears the impeller and strainer basket, replaces worn gaskets or a cracked lid, and verifies the pump achieves full prime with steady flow.

A hot tub that runs its jets but fails to heat the water makes it unusable, especially in cooler weather. The problem often stems from a faulty heating element, a tripped high-limit sensor, low water flow through the heater, or a malfunctioning control board. A pool and spa technician tests the heater, sensors, and flow switch, replaces the defective component, and calibrates the thermostat so the tub reaches and maintains the set temperature reliably.

Cloudy or milky pool water usually signals a chemical imbalance, poor filtration, or the early stages of an algae bloom. Left untreated, it can irritate swimmers' eyes and skin and mask hazards on the pool floor. A pool and spa technician can test the water chemistry, clean or replace the filter media, and restore crystal-clear water.

Green, slimy water and algae growth on pool walls or floor indicate that the sanitizer level has dropped too low, the filtration system isn't running enough hours, or the pH is out of range. Left untreated, algae can clog the filter, stain the plaster, and make the pool unsafe to swim in. A pool technician can test the water chemistry, perform a shock treatment, brush and vacuum the surfaces, clean or backwash the filter, and adjust the chemical balance to prevent recurrence.

A pool heater that fails to ignite, shuts off mid-cycle, or can't reach the set temperature turns your pool into an unusable investment during cooler months. Gas heaters can develop ignitor failures, clogged burner trays, or corroded heat exchangers; heat pumps may have refrigerant leaks or defrost-cycle faults. A pool and spa technician can troubleshoot the control board, test gas pressure or refrigerant levels, clean or replace components, and restore reliable heating.

When a pool pump loses prime it sucks air instead of water, overheating the motor, starving the filter, and leaving the pool with zero circulation. Common causes include a cracked pump lid, a worn lid O-ring, an air leak in the suction plumbing, a clogged skimmer basket, or low water level. A pool and spa technician pressure-tests the suction side, replaces seals or fittings, and verifies steady prime before leaving.

A white, chalky crust along the waterline tile is calcium scale — hard mineral deposits left behind as pool water evaporates. High calcium hardness, elevated pH, or excessive alkalinity accelerate the buildup, and once it bonds to tile or stone it resists normal brushing. A pool and spa technician tests the water chemistry, acid-washes or bead-blasts the affected tile, rebalances calcium hardness and pH, and may apply a sequestering agent to keep minerals in solution and prevent recurrence.

A salt chlorine generator that stops producing chlorine lets sanitizer levels drop, turning the pool cloudy or green within days. The most common cause is calcium scale buildup on the cell plates, but a worn-out cell, low salt concentration, or a faulty control board can also be responsible. A pool technician inspects and acid-washes the cell, tests salt levels and water balance, checks the control board for error codes, and replaces the cell if it has exceeded its lifespan.

Hot tub jets produce little to no water pressure, or some jets have stopped working entirely while others function normally. Common causes include clogged jet nozzles from calcium or biofilm buildup, an air lock in the plumbing lines, a worn pump impeller, or a faulty diverter valve that is not routing water properly. A pool and spa technician can disassemble and clean the jets, purge air locks, inspect the circulation pump, and replace any failed components to restore full jet pressure.

Returning home to a pool full of green, murky water is one of the most common shock-and-treat scenarios. Algae blooms develop quickly when the pump is off or chlorine drops to zero for even a few days—warm temperatures accelerate the problem. The fix starts with brushing the walls and floor, then a triple- or quadruple-dose chlorine shock (bring free chlorine to 30 ppm for green, 40 ppm for dark green or black). Running the pump 24/7 while the chlorine works, backwashing or cleaning the filter frequently, and adding clarifier or flocculant to capture dead algae are all part of the recovery process. A pool technician can perform the shock treatment, test and rebalance pH, alkalinity, and CYA levels, and have the pool swim-ready in 2–4 days.

When the pressure gauge on your pool filter reads 8–10 psi above its clean baseline, water flow drops and the pump has to work harder, which shortens equipment life and leaves the pool poorly filtered. Common causes include a clogged filter cartridge or dirty DE grids, a closed or partially blocked return valve, and calcium or oil buildup inside the filter tank. A pool technician can backwash or deep-clean the filter media, inspect the multiport valve and internal laterals, and recalibrate the system to restore proper flow.

A cracked pool skimmer basket lets leaves, insects, and debris bypass the basket and clog the pump impeller or filter, which can burn out the pump motor. If the skimmer housing itself is cracked, water can leak behind the pool shell and erode the surrounding soil. A pool technician can inspect the skimmer assembly, replace the basket or the entire housing if needed, and verify the suction line is sealed to prevent air leaks.

The water in your cold plunge tub turns milky, cloudy, or foamy within a day or two even though the filter is running. This is typically caused by bacteria blooming in low-chlorine cold water, body oils overwhelming the filtration, or biofilm building up on interior surfaces. A pool and spa technician can test the chemistry, deep-clean the plumbing lines, and set up a sanitation schedule that keeps the water crystal clear between drains.

Thick foam building up on the surface of your hot tub when the jets are running is usually caused by a buildup of body oils, lotions, detergent residues from swimsuits, or dissolved organic compounds that the sanitizer can no longer break down. Low sanitizer levels, an imbalanced pH, or an old and saturated filter all accelerate the problem. While anti-foam chemicals offer a temporary fix, persistent foaming typically means the water chemistry needs a complete reset — draining, cleaning the shell and plumbing lines, replacing the filter cartridge, and refilling with properly balanced fresh water. A pool and spa technician can test the water, flush the internal plumbing with a line purge product, and set up a maintenance schedule that prevents the foam from returning.

When a pool pump transitions from its normal low hum to a loud grinding, screeching, or growling noise, the cause almost always traces to one of three components inside the motor housing. The most common culprit is worn-out motor bearings — the sealed ball bearings that support the motor shaft degrade over time from heat, moisture intrusion, and chemical exposure, eventually allowing metal-on-metal contact that produces a harsh grinding sound. The noise typically starts intermittently and worsens over several weeks. A second common cause is debris lodged in the impeller: a small stone, twig, or broken piece of skimmer basket that passes through the pump basket and wedges between the impeller vanes and the volute housing, creating a rhythmic scraping or rattling on every revolution. A third possibility is a failing capacitor on single-speed motors — the start capacitor or run capacitor can degrade and cause the motor to struggle during startup, producing a loud buzzing or humming before the motor catches. Less commonly, a bent motor shaft (from running dry) or a cracked impeller causes vibration-induced noise. A pool technician can diagnose which component has failed, replace bearings or the entire motor assembly, clear impeller debris, or swap a bad capacitor, restoring quiet operation and proper flow rate.

Cloudy or milky pool water is one of the most common pool problems and usually signals a chemical imbalance, a filtration issue, or both. The cloudiness is caused by microscopic particles suspended in the water — too small to be caught by the filter or present in such quantity that the filter can't keep up. The first thing to check is free chlorine level: if it's below 1 ppm, bacteria and algae begin multiplying, producing the haze (this is why pools often go cloudy after a party with heavy bather load, a rainstorm that dilutes sanitizer, or when the chlorinator runs dry). Next is pH: when pH climbs above 7.8, calcium and other minerals start precipitating out of solution as microscopic crystals, creating a chalky haze that no amount of chlorine will fix. High calcium hardness (above 400 ppm) compounds this effect. On the filtration side, a worn-out sand charge (sand filters should be recharged every 5–7 years), a cracked DE grid, or a cartridge filter past its useful life can all allow particles to pass through. A filter running too few hours per day is equally culpable — the entire pool volume should turn over at least once every 8–12 hours. Poor circulation from a partially blocked return line, an undersized pump, or closed valves creates dead zones where particles settle and cloud the water. Finally, early-stage algae (before the water turns visibly green) presents as a dull, hazy appearance, particularly noticeable when looking at the pool floor from the surface. A pool technician will test a comprehensive water sample (free chlorine, combined chlorine, pH, alkalinity, calcium hardness, CYA, phosphates), inspect the filter and pump system, and develop a treatment plan that may include shock chlorination, clarifier or flocculant treatment, filter cleaning or media replacement, and a circulation review.