Flood & Drain Tray - Square (110cm/130cm)

What is the Flood & Drain Tray – Square used for?

It’s ideal for ebb & flow hydroponics, catching runoff, bottom-watering, propagation, messy tasks like repotting or rinsing clay pebbles, and as a base for drip or irrigation systems. It can also be used in recirculating setups with proper filtering and maintenance.

What sizes does the Flood & Drain Tray – Square come in?

Two sizes: 1080 x 1080 x 150 mm and 1300 x 1300 x 150 mm. The names “110 cm” and “130 cm” are rounded. For tight spaces or grow tents, always measure internal dimensions and compare to the mm specs. Both are 150 mm deep.

What is the Flood & Drain Tray – Square made from?

It’s made from 4 mm thick, high-impact ABS plastic. This material is durable, safe for nutrient solution, and reinforced to resist flexing under load. Avoid harsh solvents and support the tray fully to prevent sagging over time.

Does the Flood & Drain Tray – Square need support underneath?

Yes — full, flat support is essential, especially for flood cycles or heavy pots. Wire shelving alone isn’t enough unless topped with a solid board. Leveling the tray also prevents pooling or uneven flooding.

Can I slope the tray slightly for better drainage?

A slight slope toward the drain can help water exit more efficiently. Just keep the angle gentle to avoid uneven flood levels across the tray.

Does the Flood & Drain Tray – Square come with drain fittings?

No — it’s typically sold as the tray only. Most growers drill it for bulkhead fittings. Place the drain at the lowest point once the tray is in its final, level position for proper outflow.

What size bulkhead fittings work with this tray?

A common setup is 1/2" for the fill line and 3/4" for the drain or overflow. Use a clean hole, seat the gasket correctly, and avoid overtightening. Drain screens help prevent clogs from debris or roots.

Should I use sealant or tape on bulkhead fittings?

Use PTFE tape on threaded connections only — not on the gasket seal. Silicone is optional but can make removal harder. Proper gasket seating is the most important part for leak prevention.

What growing media works best in the Flood & Drain Tray – Square?

Popular options include expanded clay pebbles, rockwool blocks, and coco/perlite in pots. Fabric pots also work, but they retain more moisture and may need fewer flood cycles. Soil works too if used as a runoff tray.

How often should I flood in an ebb & flow system?

Start with conservative cycles and adjust based on plant size, media, and environment. Most growers flood just enough to wet the root zone. Overflooding is a common mistake and can lead to soggy roots.

Do I need a timer for ebb & flow setups?

Yes — a timer is essential for consistent flood cycles. It controls when the pump activates and prevents manual guesswork or accidental overwatering.

Is the Flood & Drain Tray – Square easy to clean?

Yes. Rinse out solids, scrub with warm water and mild cleaner, and sanitize if needed. To prevent algae or mineral buildup, clean regularly and avoid letting nutrient solution dry on the surface.

Can I use bleach or hydrogen peroxide to clean it?

Yes — both are commonly used. Just make sure to dilute properly and rinse thoroughly afterward. Avoid soaking the tray for long periods in strong solutions.

Will the tray stain or discolor over time?

It may show mineral marks or nutrient tinting with use. Regular light cleaning is the best way to keep it looking fresh and avoid deep, crusty buildup.

Can I use the Flood & Drain Tray – Square outdoors?

Yes, but UV and temperature extremes can affect plastic over time. If using outdoors long-term, keep it out of direct sun and don’t let standing water bake inside it.