
When a Stealth RO Booster Pump Is the Fix
Below 40 psi at the inlet. That is the line. A membrane needs pressure to push water across it. Under that figure a system makes less pure water, sends more down the drain and rejects fewer dissolved solids. This pump holds the inlet at a constant 65 psi, and HydroLogic rates it to 70.
Well Water, Gravity Feed and Other Low Water Pressure Cases
Wells and gravity fed tanks are the usual culprits. City supply can be too, at the end of a long run or on an upper floor. The only way to know is a gauge on the inlet. The kit is 110V and arrives with a low voltage transformer, a high pressure switch and a power cord, on 3/8 in quick connect fittings. It fits the Stealth-RO100, 150, 200 and 300, and it goes in ahead of the system rather than after it. At about 9 lbs and 12.75 by 6.5 by 5 in it wants a shelf or a bracket, not the tubing holding it up. If your inlet already reads 60 psi or better, this buys you very little, and the money goes further in filters.
Key Features
- Holds a constant 65 psi: Rated to 70, from an inlet that was under 40 to begin with.
- Below 40 psi is the trigger: Under that, a membrane wastes more and rejects less.
- Wells and gravity feed: The usual low pressure cases, along with long city runs.
- 110V, transformer included: Low voltage transformer, high pressure switch and cord in the box.
- 3/8 in quick connect: Fits inline ahead of the system, not downstream of it.
- Stealth-RO100 to 300: Covers the 100, 150, 200 and 300 in one part.
- Skip it above 60 psi: At healthy inlet pressure it buys very little. Spend on filters.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | HydroLogic |
| Part Number | HGC728897 |
| Supersedes | HL29020 |
| Voltage | 110V |
| Output Pressure | 65 psi constant, rated to 70 psi |
| Inlet Trigger | Use when inlet pressure is below 40 psi |
| Fittings | 3/8 in quick connect |
| In The Box | Pump, high pressure switch, low voltage transformer, power cord |
| Fits | Stealth-RO100, 150, 200 and 300 |
| Position | Ahead of the RO system |
| Length | 12.75 in |
| Width | 6.5 in |
| Height | 5 in |
| Weight | About 9 lbs |
| Typical Cases | Well water, gravity feed, long city runs, upper floors |
| UPC | 812111010225 |