Backwash Procedure; Winterizing And Storing The Filter - Toro Aqua-Clear AC-40 Installation & User Manual

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CAUTION — NEVER PUMP WATER WHEN BOTH 3-WAY VALVE HANDLES ARE HORIZONTAL!

Backwash Procedure

NOTE: The following Backwash instructions only apply for the manifold setup for two filters. For a single
filter setup, refer to your valve instruction manual.
1. Turn pump OFF before turning valve handle.
2. Close the outlet of the manifold using a plug or a gate valve in your irritation plumbing (if installed).
3. Turn the left 3-way valve. The valve will only turn in one direction. Do not force the valve handle. The word
"OFF" on the valve should rotate towards the other 3-way valve.
4. Turn pump ON and run the backflush until the water runs clear and clean (approximately 2 minutes).
5. Turn the 3-way valve to its vertical position. Backflushing then stops and the filter returns to normal filtration
operation.
6. Turn the right hand 3-way valve. The word "OFF" on the valve should rotate towards the other 3-way valve.
Run the backflush until the water runs clear and clean (approximately 2 minutes).
7. Turn the 3-way valve to its vertical position. Backflushing then stops and the filter returns to normal filtration
operation.
8. Backwash whenever the pressure increases by 5 - 10 psi.
CAUTION — NEVER PUMP WATER WHEN BOTH 3-WAY VALVE HANDLES ARE HORIZONTAL OR WITH THE
OUTLET BLOCKED!

Winterizing and Storing the Filter

1. After the growing season is over, make sure that you backwash the filter before turning off the irrigation system.
This helps protect the filter for future use.
2. Leave the manifold in the BACKWASH position.
3. Always drain the water from the filters, the 3 way valves and the manifold.
4. Remove the plug on the bottom of the filter. The filter will drain very slowly, and therefore, it is recommended
that the drain plug be left out.
5. Drain all appropriate system piping.
6. It is recommended to cover the equipment with a tarpaulin or store out of the weather to inhibit deterioration
from weather.
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