Excessive Bubbles in the Pool
When your solar system is activated for the first time each morning, it’s normal to observe large bubbles in your pool. This phenomenon occurs as the water exerts pressure on the air within the solar collectors. At the end of your daily filtration cycle, the water should flow back into the pool, displacing the air in the system.
Continuous Small Bubbles in the Pool
If you notice a steady stream of small bubbles when your solar system is running, it typically indicates a flow issue. The vacuum relief (VR) valve located in the top corner of the solar collectors might be drawing air in due to insufficient pressure. Start by inspecting and cleaning your filter, as a clogged filter is often the culprit in 80% of cases. If cleaning the filter doesn’t resolve the issue, the VR valve may need replacement. Additionally, ensure that your pump is operating correctly, especially if it’s a variable speed model. In some cases, upgrading to a more powerful pump might be necessary.
Inadequate Pool Heating
If your pool isn’t heating as expected, first ensure that the solar system is active. Pool service personnel sometimes switch off the solar valve but forget to reactivate it. For effective solar heating, favorable weather conditions are essential. If the system is on but not heating, it may indicate a malfunctioning control sensor, which could require replacement. Additionally, if your system is controlled by a time clock, power outages could disrupt the filtration cycle, preventing the solar system from heating.
Leak in the Solar System
Leaks in your solar system are often due to a loose hose clamp or a worn-out O-ring, both of which are easy to fix. Alternatively, there could be a hole in the solar collector, requiring a splicer or plug for repair. If you notice water spitting from the system, it may indicate that the VR valve isn’t closing properly, in which case the valve might need to be replaced.
Water Flow Noise When the System Is Off
If you hear water being pumped to the system even when it’s off, it suggests an issue with one of the check valves. Each system has two check valves, and if the one on the return side is malfunctioning, it needs immediate maintenance or replacement.
White Powder in the Pool
The presence of white powder in your pool often points to a malfunctioning check valve located after the filter. This valve is designed to prevent water from flowing backward through the filter when the solar system drains at the end of each day. The white powder, known as DE (diatomaceous earth), is a filtration medium used to capture dirt. If this is entering your pool, the check valve likely needs servicing or replacement.
Leakage or Dark Substance in the Pool
If your solar panels develop a leak or you notice a dark substance in your pool, it may be carbon from an aging pool heating system. If your system is over 10 years old, it’s advisable to have it inspected for potential issues.
Roof Noise During Storms
A pounding noise from the roof during storms may indicate that the solar collectors need maintenance, particularly where they are attached to the roof. Regular servicing every 5-8 years is recommended to evaluate the entire system, including the roof attachments.