Solar Shields (Screw-In Tank Light Guards)
Protect your rainwater quality by preventing algae growth and sediment disturbance with Rain Harvesting’s innovative Inlet Strainer Solar Shields.
Why Use a Solar Shield?
Sunlight entering your tank through the Inlet Screen can stimulate algae growth, affecting water quality. Solar Shields fit neatly under your existing tank screen to block harmful sunlight while calming water inflow.
Solar Shield Benefits
- Prevents Algae Growth - Blocks sunlight from entering your tank inlet, reducing conditions that promote algae development
- Calms Water Inflow - disperses incoming rainwater evenly to minimize sediment disturbance at the tank bottom
- Easy Installation - fits under your existing tank screen - no special tools required
- Protects Water Quality -Â helps maintain cleaner stored water for all your household and garden needs
How Solar Shields Work
1) Blocks Out Sunlight
Sunlight stimulates algae growth in stored water, so excluding light from your tank interior is essential. While sunlight normally enters easily through tank screens, Rain Harvesting's Solar Shields block the majority of harmful light rays.
- With Solar Shield: Darken interior, minimal light penetration
- Without Solar Shield: Sunlight able to enter tank through screen
2) Calms Water Inflow
During rain events, incoming water can disturb sediment at the tank bottom, spreading it throughout your stored water. The Solar Shield's clever design calms and disperses water flow evenly, preventing sediment resuspension and allowing your pump to draw cleaner water.
- With Solar Shield: Calm, dispersed water flow, minimal sediment disturbance
- Without Solar Shield: Turbulent flow, sediment spreads through water as it fills
Selecting the Right Size
Your Solar Shield should match the size of your tank screen for proper fit and maximum effectiveness.
| Solar Shield Size | Compatible Tank Screen |
|---|---|
| 300mm Solar Shield (TASS24) | 300mm Tank Screen (TATS11) |
| 400mm Solar Shield (TASS25) | 400mm Tank Screen (TATS12) |
| 500mm Solar Shield (TASS26) | 500mm Tank Screen (TATS02) |
Not sure which size you need? Check your existing tank screen or contact us for assistance.
Frequently Asked Questions
Why do I need a Solar Shield?
Solar Shields prevent algae growth by blocking sunlight from entering your tank through the inlet. They also calm incoming water to reduce sediment disturbance, helping maintain cleaner stored water.
Will a Solar Shield reduce water flow into my tank?
No, Solar Shields are designed to maintain good water flow while dispersing it more evenly. This actually improves water quality by preventing sediment resuspension.
Can I install a Solar Shield on any tank screen?
Solar Shields are specifically designed for Rain Harvesting Tank Screens. Make sure to select the Solar Shield size that matches your tank screen diameter (300mm, 400mm, or 500mm).
Do I need special tools to install a Solar Shield?
No special tools are required. Simply unscrew your existing tank screen, place the Solar Shield underneath, and screw the tank screen back on. Installation takes just a few minutes.
Will the Solar Shield completely eliminate algae in my tank?
While Solar Shields significantly reduce algae growth by blocking sunlight at the inlet, they work best as part of a complete tank management system. Keeping your entire tank sealed from light and maintaining regular cleaning schedules will give you the best results.




