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Reverse Osmosis System Tank 20G Steel (74 Liter) ⅜

Installation Safety Warnings:

For the 12L & 24L Models: Most kitchen cupboards can handle these weights (12–23 kg) on the base floor. However, do not place a full 24L tank on a middle shelf without reinforcing it, as the shelf may bow or collapse over time.
For the 40L & 74L Models: These are very heavy (up to 65 kg). They should always be placed on a solid concrete floor or a reinforced steel stand.
Pressure Matters: If the customer’s RO system has a high-pressure pump, the tank might hold slightly more water than listed, making it even heavier. Always calculate for a “worst-case” maximum weight.

Description

ID: 1163 | SKU: TQA.TANK.SS74

Best For: High-demand industrial applications, large-scale hydroponics, and whole-house RO backup.

Tank Size	Recommended Air Pressure (Empty)	Maximum Working Pressure
12 Litre	0.45 bar (approx. 7 PSI)	6.9 bar (100 PSI)
24 Litre	0.45 bar (approx. 7 PSI)	6.9 bar (100 PSI)
40 Litre	0.50 bar (approx. 8 PSI)	6.9 bar (100 PSI)
74 Litre	0.55 bar (approx. 8 PSI)	6.9 bar (100 PSI)

Isolate & Empty: Turn off the water supply to the RO system and open the RO faucet until the water stops flowing completely. This ensures there is no back-pressure from the water.
Locate the Valve: On the side or bottom of the stainless steel tank, there is a small plastic cap. Unscrew it to reveal a standard Schrader Valve (exactly like a car or bicycle tire valve).
Check Pressure: Use a low-pressure digital gauge. If it reads $0$ , the bladder has lost its charge.
Pump Slowly: Use a manual bicycle pump or a small compressor.
- Warning: Only add a few pumps at a time. Because the air chamber is small, the pressure rises very quickly.
Target: Aim for 0.45 bar. If you go over, simply bleed a little air out using the center pin of the valve.

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