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The FizzJet swimming pool aerator will fit almost all types of standard pipework. The standard edition fits 1.5″ BSP jets which are utilised by the majority of pools. If you are based in the US, you will normally need our FizzJet (Hayward NPT Fitting) which has slightly different thread types. Standard 1.5″ fittings have an outer diameter of 47.8mm and a smooth thread. Hayward fitment are 47mm outer diameter with a tapered (flat) thread and often have the Hayward name or part number on them.

If you’re unsure, check with your pool professional before ordering as they are difficult to tell apart visually.

Lastly, if you have a male adapter on your eyeball jet, you will need a female to female threaded coupler such as this one.

You need one FizzJet for every jet in your pool for the product to work. Pools typically have 1-5 return jets and multi-buy discounts are available from selected retailers.

The pump must be running and the air pipe installed in each FizzJet for aeration to occur. Ensure the air pipe is pushed firmly to the bottom.

If you still don’t have bubbles, you may need to backwash your filter or increase pump speed if you have a variable flow pump. FizzJet requires around 6 m³/h  (27 GPM) of water flow to generate bubbles which even low powered pumps of ~1HP should easily achieve. 

The FizzJet air pipes come with a blue sound reducer caps for a quiet operation, ensure they are fitted.

FizzJet air pipes need to be located a little above the pool surface. It comes with two extender pipes to give a maximum depth of 50cm (20 inches).

FizzJet uniquely allows pool owners to rapidly raise pH without raising the critical total alkalinity (TA) level in your pool which acts as a buffer. Aeration is the only method in which to do this. 

However it is possible to raise pH beyond the recommended range (7.2-7.8) through extended aeration. Once you have reached the desired pH level, simply remove the air intake pipes.

The pH level will not normally rise beyond 7.8-8 unless your TA levels are high (see related question below). pH naturally limits itself as carbon dioxide is outgassed.

Pool owners wanting to lower TA (total alkalinity) have long since faced a problem when using chemicals. PH Reducer or muriatic acid will reduce both pH and TA. Utilising PH Increaser or soda ash will then raise both also. They rise and fall in lockstep; FizzJet solves this problem.

The ideal range for TA is 8-120ppm. Use your choice of pH reduction to reduce TA to within range and then use FizzJet to bring the pH back to your desired level.

You may wish to do this in stages to avoid making the pH too low and unsuitable for swimmers. Ideally, use the dosing calculator for your chemical to reduce pH to no less than 6.8. If after aerating with FizzJet your TA is still too high, then repeat the process.

The millions of tiny bubbles created by FizzJet increases the infusion and disruption to the water surface. This allows heat to escape and means aeration is most effective when temperatures are cooler early morning or late at night.

To get all the benefits of FizzJet all the time, it’s possible to use it for extended periods or continuously.

You will need to reduce TA to 50-80ppm to do so – this will prevent the water chemistry from going beyond the top of the desirable range.

If you have a variable speed pump, you can also reduce the flow to the lower end of the operating range (6 m³/h  / 27 GPM).

There are some excellent references available online. Trouble Free Pools has a guide as does Swim University.

Robert W Lowry is a renown expert in pool chemistry and has spent years advocating the benefits of pool aeration. He reached out to FizzJet when he saw this unique product come on the market to congratulate us.

There are a number of ways you can aerate your pool using existing equipment or low cost alternatives if you’re handy. Most on-line guides speaking about aeration provide some tips on how to make one yourself using PVC piping to divert your jet water above the surface,

Other methods use equipment such as running compressor air lines in the water.

These will work, but will need putting in place and removing every time you want to aerate and look un-sightly. The best innovations are simple products and FizzJet has achieved global patents for its design. 

FizzJet is manufactured in the United Kingdom by its parent company SGH Ltd, a company producing high quality plastic parts for some of the largest global names. FizzJet used to be called SpaO2 before SGH acquired the rights in 2025 and has been sold all over the world since 2019.