Hydrochloric Acid – 16.5%
The Pool Lab ASP requires a reservoir of 16.5% hydrochloric acid for maintaining the pH
of the pool water. Hydrochloric acid can be purchased pre-mixed in 15 Litre or 20 Litre
drums at this strength, or you can dilute 33% acid by half with an equal amount of water.
(see instructions on next page).
Replace the cap of your acid drum with the fume stop cap and weight provided and set the
tube length so that the weight can reach the bottom of the drum.
IMPORTANT: When changing an acid drum that has been completely emptied you should
always cycle the power to your Pool Lab Chlorinator control box OFF then back ON again
after approximately 10 seconds. This will reset the acid feed algorithm and prevent the
chance of over-feeding on the first acid delivery.
To test the acid feed, or to prime the tubing:
1. Go to the MAIN MENU (press and hold VIEW for 3 seconds)
2. Navigate to ASP TOOLS and press VIEW
3. Navigate to ACID PRIME and press VIEW
4. Press VIEW to start acid pump (will run for 60 seconds)
5. Press BACK to stop acid pump.
6. Press BACK at least three times to exit the menu system.
Always wear appropriate protective clothing such as gloves, eye protection
and a suitable respirator (Type E) when handling hydrochloric acid or when
servicing the acid dosing system
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