The Tucker 4-inch by 40-inch RO membrane is the workhorse pre-stage for water-fed pole window cleaning rigs running on hard or high-TDS source water. Reverse osmosis strips 95-99 percent of dissolved solids before the water hits your DI resin, dramatically extending resin life and lowering your cost per gallon of pure water on routes with poor source water.
Use Cases
- Window cleaning crews running Tucker pole/tank rigs in high-TDS regions
- Trailer-mount RO/DI systems where membrane swaps are routine maintenance
- Solar panel cleaning operations needing high-volume pure water output
- Restoration and exterior cleaning where dissolved solids drive resin cost
- Replacement membrane for any 4 x 40 standard housing on a Tucker-sized rig
How An RO Membrane Earns Its Keep
If your tap water tests above 150 ppm TDS, a DI-only system burns through resin fast. Adding an RO membrane upstream knocks 95+ percent of those dissolved solids out before the water reaches the DI resin, so the resin only has to polish off the remainder. In high-TDS markets the membrane pays for itself in a single resin cycle.
Specifications
- Dimensions: 4-inch diameter x 40-inch length (standard 4040 housing)
- Rejection rate: typically 95-99 percent of total dissolved solids
- Compatible with Tucker pole/tank rigs and any standard 4040 RO housing
- Long-life membrane sized for continuous-duty window-cleaning service
- Field-replaceable - housing stays put, swap the membrane at end of life
Frequently Asked Questions
When should I replace the membrane?
Two indicators: rejection rate dropping (TDS at the membrane outlet climbing toward your inlet TDS) and flow rate falling. Most RO/DI window cleaning operators get one to three years of service depending on water quality, run-time, and whether they flush regularly. Track inlet vs outlet TDS monthly with a digital meter.
Do I need a sediment pre-filter ahead of this membrane?
Yes - always. A 5 micron sediment cartridge in front of the RO protects the membrane from particulate fouling and is the single biggest factor in membrane life. Most users add a carbon block too if their source water is chlorinated, since chlorine attacks RO membranes.
Will it fit a non-Tucker 4040 housing?
Yes. The 4 x 40 form factor is the industry standard for trailer-mount and base-cart RO systems. The membrane drops into any compliant 4040 housing - just confirm your housing accepts a standard end cap.
What kind of pressure does it need?
Standard RO membranes operate best at 50-65 psi feed pressure with reasonable temperature (above 50 deg F). If your municipal pressure runs low or your feed water is cold, a booster pump is the usual fix and is already plumbed into most professional WFP rigs.
Discount Cleaning Products carries Tucker membranes, replacement DI resin, and the full water-fed pole accessory line. Our team helps you size the right membrane and pre-filter combination for your service area's water profile.
