Stainless Steel Tetherlok Rainstopper™


Unwanted rainwater adds to the cost of sewage treatment. Now this rainwater can be eliminated from the system with the new "Rainstopper" manhole cover insert! FEATURES: Easily installed by one person. Made from Corrosion Resistant High Strength Stainless Steel. Weighs only ten pounds. Sewer gas will be vented with a non-mechanical device. Less maintenance due to no moving parts. Anti-theft tether. Available in 304 SS or 316 SS. Straight side designed to fit DOT castings. Sizes for many different manway openings	Estimates on Rainwater treatment cost per manhole on an average rainy day a manhole will allow 2,000 to 9,000 gallons of inflow to the treatment system. MINIMUM COST $50.00 per year per manhole* MAXIMUM COST $500.00 per year per manhole* Figures based on average yearly rainfall in the SW region and selected engineers' estimate on sewage treatment cost. BENEFITS:* Stops flow of rainwater into sewage systems. Control manhole odors. Keeps dirt out of system. Helps prevent manhole rattling and flipping due to street traffic. Tether promotes safety - insures replacement
LIFETIME WARRANTY Full replacement is guaranteed, should this product fail.
How the Tetherlock Works