Frequently Asked Questions

Find answers to common questions about pool filter installation and maintenance services

The lifespan depends on the type of filter system you have. Sand filters typically need media replacement every 5-7 years, while cartridge filters require replacement every 1-3 years depending on usage and water quality. DE (diatomaceous earth) filters need new grids every 3-5 years.

However, these are general guidelines. If you notice reduced water flow, cloudy water despite proper chemical balance, or visible damage to filter components, replacement may be needed sooner. Our technicians can assess your specific system during routine maintenance visits and recommend the optimal replacement schedule based on actual condition and performance.

The ideal filter depends on several factors including pool size, usage frequency, and your maintenance preferences. Sand filters are durable and require minimal upkeep, making them suitable for larger residential pools. Cartridge filters offer superior filtration down to 10-15 microns and are energy-efficient, perfect for medium-sized pools.

DE filters provide the finest filtration at 3-5 microns, ideal for pools requiring crystal-clear water, though they need more frequent maintenance. For pools in London and surrounding areas, we often recommend cartridge systems due to their efficiency and ease of maintenance. Our specialists will evaluate your specific requirements, budget, and pool characteristics to recommend the most appropriate solution.

A standard filter replacement typically takes 3-5 hours, including removal of the old unit, installation of the new system, and testing. For new installations where no previous system exists, the process may take 6-8 hours as it involves additional plumbing work and electrical connections.

Complex installations requiring significant modifications to existing plumbing or pump systems may extend to a full day. We always conduct a thorough site assessment beforehand to provide accurate time estimates. Our team works efficiently to minimize disruption while ensuring proper installation. Most residential projects are completed in a single visit, with the pool ready for use within 24 hours after installation.

We offer comprehensive maintenance packages including weekly or fortnightly visits for water testing, chemical balancing, skimming, and vacuuming. Our technicians clean filter cartridges, backwash sand filters, inspect equipment for wear, and monitor pump performance.

Seasonal services include opening and closing procedures, winterization, and spring start-up. We also provide equipment inspections, leak detection, tile cleaning, and emergency repairs. Each service visit includes a detailed report of water chemistry, equipment status, and any recommendations. Maintenance contracts can be customized based on pool size, usage patterns, and your specific needs, with flexible scheduling to suit your requirements.

Several signs indicate your filter needs attention. Increased pressure gauge readings (8-10 PSI above normal operating pressure) suggest the filter is clogged and needs cleaning. Reduced water flow from return jets, cloudy or murky water despite proper chemical levels, and longer filtration cycles are also warning signs.

For cartridge filters, visible tears, crushed pleats, or persistent discoloration after cleaning indicate replacement is needed. Sand filters showing channeling or clumping of media require new sand. If cleaning no longer restores normal pressure or water clarity, replacement is likely necessary. Our maintenance team monitors these indicators during regular visits and will advise you on the appropriate action.

Yes, our technicians are trained to work with all major filter brands including Hayward, Pentair, Zodiac, Intex, and Bestway, among others. We maintain relationships with suppliers to ensure access to genuine replacement parts for both current and discontinued models.

Whether you have a residential cartridge system, commercial sand filter, or DE filter, we have the expertise to service it properly. For older or uncommon brands, we can source compatible parts or recommend suitable upgrade options if original components are no longer available. Our experience spans over 15 years working with diverse pool systems across London, giving us the knowledge to handle virtually any filter type or brand.

We provide services throughout Greater London, including all central boroughs and surrounding areas. Our primary service area covers North London districts such as Hampstead, Highgate, Camden, and Islington, as well as West London areas including Kensington, Chelsea, and Hammersmith.

We also serve South London locations like Wimbledon, Richmond, and Wandsworth, plus East London areas including Canary Wharf and Stratford. For properties outside our standard service area, we can arrange visits on a case-by-case basis. Contact us with your postcode, and we'll confirm availability and any additional travel considerations for your location.

Yes, we provide emergency repair services for urgent situations such as filter leaks, pump failures, or complete system breakdowns. Our emergency response team is available during extended hours, and we prioritize calls based on severity and potential for property damage.

For maintenance contract customers, emergency callouts are included in their service package with priority scheduling. Non-contract customers can also access emergency services, though standard emergency rates apply. We carry common replacement parts in our service vehicles to resolve many issues on the first visit. Response times vary by location and time of day, but we aim to attend emergencies within 4-6 hours during business days and within 24 hours for weekend calls.

Each standard maintenance visit includes comprehensive water testing for pH, chlorine, alkalinity, and calcium hardness levels. We adjust chemicals as needed to maintain proper balance. The pool surface is skimmed for debris, and we vacuum the floor and brush walls and tiles.

Filter systems are inspected, with cartridges cleaned or sand filters backwashed as required. We check pump baskets, empty skimmer baskets, and inspect all equipment for proper operation. Water levels are adjusted, and we examine the pool structure for any signs of damage or wear. You receive a detailed service report documenting all work performed, current water chemistry readings, and any recommendations for repairs or upgrades. Visits typically last 45-90 minutes depending on pool size and condition.

Installation costs vary based on filter type, pool size, and complexity of the installation. Basic cartridge filter installations for residential pools typically range from £800-£1,500, including the unit and labor. Sand filter systems generally cost £1,200-£2,200, while DE filters range from £1,500-£2,800.

These prices include removal of the old system, installation of the new filter, necessary plumbing modifications, testing, and a 12-month warranty on workmanship. Additional costs may apply for electrical work, significant plumbing changes, or premium filter models. We provide detailed written quotes after assessing your specific requirements, with no hidden fees. Financing options are available for larger installations, and we offer package discounts when combining installation with annual maintenance contracts.

Basic maintenance tasks like cleaning cartridge filters, backwashing sand filters, and monitoring pressure gauges can be performed by pool owners with proper guidance. We provide detailed instructions and can demonstrate these procedures during service visits.

However, certain tasks require technical expertise and specialized tools. Filter media replacement, system troubleshooting, leak repairs, and equipment modifications should be handled by qualified technicians to avoid damage and ensure safety. Improper maintenance can void warranties and lead to costly repairs. We recommend a hybrid approach where owners handle routine tasks between our scheduled visits, while leaving technical work to our team. This balances cost savings with proper system care and longevity.

All our installations include a 12-month warranty on workmanship, covering any issues arising from the installation process itself. This includes plumbing connections, electrical work, and system integration. Filter equipment comes with manufacturer warranties, typically 1-3 years depending on the brand and model.

We register all equipment warranties on your behalf and serve as your point of contact for any warranty claims. Our warranty covers return visits to address installation-related issues at no additional charge. For extended peace of mind, we offer optional extended warranty packages covering both parts and labor for up to 5 years. All warranty terms are clearly outlined in your installation contract, and we maintain detailed records of all work performed for future reference.

Modern filters have become significantly more energy-efficient compared to older models. Variable-speed pumps paired with efficient filters can reduce energy consumption by 50-75% compared to traditional single-speed systems. Cartridge filters generally require less pump pressure than sand or DE filters, resulting in lower energy usage.

Properly sized filters matched to your pool volume and pump capacity operate more efficiently, reducing runtime and electricity costs. We calculate the optimal filter size based on your pool's specific requirements to maximize efficiency. Energy-efficient models may have higher upfront costs but typically pay for themselves within 2-3 years through reduced operating expenses. We can provide energy consumption estimates for different filter options to help you make an informed decision based on both initial investment and long-term operating costs.

A comprehensive filter inspection includes examining all system components for wear, damage, or inefficiency. We check pressure gauges for accurate readings, inspect o-rings and seals for deterioration, and examine filter media or cartridges for proper condition. Plumbing connections are checked for leaks, and valves are tested for proper operation.

The pump is assessed for unusual noise, vibration, or performance issues. We measure flow rates and compare them to manufacturer specifications to ensure optimal performance. Water samples are tested to verify the filter is removing contaminants effectively. You receive a detailed inspection report with photographs of any issues found, along with prioritized recommendations for repairs or replacements. Inspections typically take 30-45 minutes and are recommended annually, even for well-maintained systems, to catch potential problems before they become serious.

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About Kabijo

Kabijo was established in 2015 by a team of swimming pool specialists who identified the need for reliable water treatment services in London. What began as a small operation serving residential clients in the NW3 area has grown into a comprehensive service provider covering all aspects of pool maintenance and filtration systems.

Our company specializes in installing sand, cartridge, and DE (diatomaceous earth) filters for both private and commercial pools. We work with equipment from manufacturers including Hayward, Pentair, and Astral, ensuring compatibility with existing systems. Each installation includes pressure testing, backwash valve calibration, and water chemistry balancing.

Pool filtration system installation

Our Approach

We serve swimming pool owners across London, from Hampstead to Chelsea, providing scheduled maintenance programs. Our technicians conduct weekly or bi-weekly visits that include filter cleaning, chemical testing (pH, chlorine, alkalinity levels), and equipment inspections. This prevents common issues such as algae growth, cloudy water, and premature equipment failure.

The company operates with 8 qualified technicians, each holding PWTAG (Pool Water Treatment Advisory Group) certification. Our service vehicles carry replacement parts, testing equipment, and water treatment chemicals, allowing us to resolve most issues during the initial visit without requiring follow-up appointments.

Professional pool maintenance service

What Guides Us

  • Technical accuracy: We follow manufacturer specifications and British water quality standards (BS EN 15288) for all installations and maintenance procedures.
  • Response time: Emergency calls are typically addressed within 4 hours during business hours, with weekend availability for critical equipment failures.
  • Transparent pricing: All quotes include itemized costs for parts, labor, and materials, with no additional charges beyond the agreed scope of work.
  • Client education: We provide written maintenance logs and explain water chemistry results, helping owners understand their pool systems.

Since 2015, we have completed over 1,200 filter installations and maintain ongoing service contracts with 340 clients throughout London. Our average client relationship spans 3.5 years, reflecting the reliability of our service programs.