Swimming Pool Trivia Crossword

BLU52, Pool Magic, Africhem and Zodiac Pool Lab are brands of [answer] (9)
Added to water to decrease pH or total alkalinity (TA) (4)
The most common filtration media (5)
The G6, Navigator, Pacer, Q-VAC and MX8 are all examples of [answer] (21)
The H5 Duo, H7 Duo and Sonic 4 belong to which brand (10)
Two types of swimming pool surfaces are fibre glass and... (9)
Black, green and [answer] are types of swimming pool algae (7)
Used to increase the total alkalinity (TA) in swimming pools (7)
Superflo pumps and filters belong to this brand (7)
Described as the heart of the swimming pool (4)
With salt chlorination, [answer] is not added to the system but is generated by the system (8)
Remove leaves from your weir [answer] at least once a week (6)