By Scott Kelly, Technical Consultant
Why You Can’t Afford to Ignore Leaks in Sanitary Sewer Manholes!
Next to treatment cost, chemical grouting to seal manhole infiltration is a BARGAIN! Do you know how much it cost to treat one gallon of water in your waste water treatment plant? If so then you realize the importance of minimizing the amount of water that enters your system through defects in manholes and pipe joints. If not then here are a few facts that prove doing nothing may be wasting thousands of your systems dollars and resources.
One manhole leak at 5 gallons per minute will produce 2,628,000 gallons of water into your system annually. At an average cost of treatment 0.035 cents per gallon that’s $9,198.00 per year.
If your system has 500 manholes and we assume 5% of your systems manholes have leaks of this caliber then 25 repaired manholes would equal $229,950.00 in annual savings in the first year.
The low average cost to repair 25 manholes by chemical grout injection with Prime Flex products is: $25,000.00 the high end cost would be around $50,000.00. That means that in as little as 40 days to 80 days you will see a return on your investment.
We will train your personnel in house or your preferred infrastructure contractor to make these repairs. We also have a network of qualified trained contractors available nationwide to make these repairs.
Pending access and the logistics of the manholes a qualified three-man crew can complete 3 to 6 manholes in a single day, which means savings, begin from day one!
Eliminating the water in your system will free up valuable capacity in your treatment plant, which can put off plant expansions or new plant construction for years saving millions!
The reduction of infiltration will lessen the likelihood of overflows and illegal discharges, which can mean heavy fines and subjection to EPA scrutiny for years.
Infiltration through defects in the manhole wall expedites the deterioration of the structure and can allow voids to form outside the wall of the manhole, which leads to sink holes and settled paving surfaces.