Brine Tank - 125L with Internals 3/8in Brine with 500a Aircheck

This 125-litre brine tank is supplied as a complete unit with all the internals needed to put it straight into service: a grid plate/brine well, a 500A Aircheck safety brine valve, and a 3/8" brine tube ready to connect to your control valve's brine line. It's a direct replacement for a cracked, split or otherwise failed brine tank on a residential or light commercial water softener, saving you sourcing the tank and internals separately. WrekinWater stocks this 125L tank complete so a full brine tank replacement can be handled in one order.

Technical specifications

Symptoms that mean you need this part

• The tank is cracked, split or leaking at the base or a seam
• The plastic has become brittle or UV-degraded and is failing under normal handling
• The tank is badly discoloured, stained or fouled beyond cleaning
• The lid no longer fits or seals properly, letting debris or insects into the salt
• The existing brine valve and float mechanism are worn beyond repair and it makes sense to replace the tank as a complete unit

Why it fails / why it matters

A brine tank holds the salt and water needed to make the concentrated brine solution used every regeneration cycle, and its internals, the grid plate, brine valve and Aircheck float, control how that brine is drawn and how the tank refills afterwards. Plastic tanks can become brittle with age and UV exposure, especially if stored or installed somewhere they see direct sunlight, and once a tank is cracked or the base has failed there's no reliable repair, since any leak means lost brine and lost softening capacity. Because the internals wear alongside the tank, replacing both together as a complete 125L unit is usually more practical than trying to keep patching an old tank.

Why buy this from WrekinWater

WrekinWater has supplied water softener parts, including complete brine tanks, to installers and DIY customers for over 15 years from its Bettisfield, Shropshire base, and stocks the range alongside Pentair Autotrol, Fleck, Clack and Kinetico control valves. With more than 50,000 customers served and an Excellent Trustpilot rating, WrekinWater is a straightforward source for a full brine tank replacement rather than piecing one together from separate parts.

How to fit it

1. Before ordering, check the new 125L tank's footprint will fit your available space and that the brine valve fitting suits your control valve's brine line connection
2. Isolate the softener and note the water level and brine line routing on the tank being replaced
3. Empty and remove the old brine tank, transferring across any parts you want to reuse, or use the internals supplied with the new tank
4. Position the new tank and fit the supplied grid plate, 500A Aircheck brine valve and 3/8" tube
5. Connect the brine tube to the control valve's brine line fitting and refill with the correct amount of water and salt for your system
6. Run a manual regeneration cycle and check the brine draw, tank refill level and Aircheck shut-off are all working correctly