How often should I clean my hot tub filter cartridge?

Hose the cartridge each week and use Deep Blue Spas Cartridge Cleaner for a four-weekly soak. Replacement is normally needed after 12 to 18 months.

Can I use household cleaners on my hot tub shell?

No. Surfactants in domestic cleaners create lasting foam. Only apply a spa-grade Tile and Liner Cleaner.

What is biofilm in a hot tub?

Biofilm is a bacterial slime that develops inside warm, wet pipes. It resists routine sanitiser levels and can shed cloudy, odorous material into the spa.

Do I need to flush the pipework on every drain?

For the best result, yes. Up to half the spa water can remain inside plumbing, where sanitiser has limited reach.

How long do hot tub filter cartridges last?

Monthly deep cleaning gives most domestic cartridges a 12 to 18 month life. Fit a new one earlier when pleats fray or cleaning does not reduce pressure.

Deep Blue Spas Hot Tub Water Cleaners

Cleaners in the Deep Blue Spas range target the equipment and surfaces around spa water: cartridges, internal plumbing, the waterline and outer shell. Keeping these areas clean has a major effect on water clarity and odour.

Products in this range

Deep Blue Spas Filter Cartridge Cleaner
Deep Blue Spas Hot Tub Flush
Deep Blue Spas Instant Filter Cleaner
Deep Blue Spas Surface Cleaner / Water Line Cleaner