If you’re a pool owner in Cape Town or the surrounding Western Cape region, choosing the right filtration system is crucial for maintaining clean, safe water. Sand pool filters are a popular option due to their simplicity, affordability, and effectiveness. In this guide, we’ll explain how sand filters work, their pros and cons, and how our expert pool services can help you get the most out of your filtration system.
How Sand Pool Filters Work
A sand pool filter uses specially graded filter sand to capture dirt and debris from your pool water. As the water is pumped through the filter tank, particles are trapped in the sand bed. The clean, filtered water is then returned to your pool via the return jets.
Sand filters typically remove particles as small as 20 microns. While not as fine as cartridge or DE (diatomaceous earth) filters, they are sufficient for most residential pools.
Benefits of Sand Pool Filters
1. Low Maintenance
Sand filters are user-friendly and require minimal ongoing care. Just monitor the pressure gauge and backwash as needed.
2. Cost-Effective
They’re among the most affordable filtration systems, both in initial setup and long-term maintenance.
3. Durability
With proper maintenance, sand filters can last up to 5 years or longer before needing replacement sand.
Drawbacks to Consider
Lower Filtration Fineness
Sand filters are less effective at filtering very fine particles compared to cartridge or DE filters.
Regular Backwashing
To clean the filter, you’ll need to perform a backwash — a process that reverses water flow to flush out debris. This uses extra water, which can be a concern during drought restrictions in Cape Town.
When to Service or Replace Your Sand Filter
- Pressure gauge consistently high after backwashing
- Reduced water flow or cloudy pool water
- Sand leaking into your pool
- Filter sand older than 5 years
For sand filter repairs, replacements, or upgrades, contact our Cape Town-based pool specialists. We service Brackenfell, Durbanville, Kenwyn, Somerset West, and beyond.
Top Sand Filter Brands in South Africa
- Hayward ProSeries Sand Filters – Known for their reliability and easy maintenance.
- Pentair Sand Dollar Filters – Durable and energy-efficient, ideal for residential use.
- Speck BADU Sand Filters – Locally popular for their performance in South African pool systems.
Cape Town Pool Services: Installation & Maintenance
At Pools Reno, we provide full swimming pool services including:
- Pool filter installation and upgrades
- Sand replacement and media conversions
- Pool pump and plumbing system checks
- Monthly or seasonal pool maintenance
- Leak detection and repairs
We’re based in Cape Town and service all surrounding suburbs. Our team ensures that your pool runs efficiently year-round.
FAQ – Sand Pool Filters Cape Town
1. How often should I backwash my sand filter?
Typically, when the pressure rises 8–10 psi above normal. Most pools need backwashing every 2–4 weeks.
2. Can I switch from a sand filter to a cartridge or DE filter?
Yes, but it might require plumbing modifications. Contact us for a consultation.
3. What type of sand should I use?
Use only approved pool filter sand — 0.45–0.55 mm grade silica. Do not use beach or building sand.
4. How much sand does my filter need?
This depends on your filter size. For example, a 21-inch filter may require around 100kg of sand.
5. How can I tell if the sand needs replacing?
If water stays cloudy, the pressure is off, or sand is returning to the pool — it’s time to replace the sand.
Internal Links
- How to Backwash Your Pool Filter
- Choosing the Right Pool Pump
- Signs You Need Pool Filter Replacement
External Links
Need expert advice or a free quote for sand filter services in Cape Town? Contact Pools Reno today — your trusted partner for pool maintenance, installations, and equipment repairs across the Western Cape.
