The average cost for pumping and hauling away holding tank waste is $100- $150 per gallon. A holding tank needs professional pumping every 6-8 weeks. It does not allow sewage to seep into the ground.
How much waste a holding tank generates and the size of the tank determine how often pumping is needed. With showers, toilets and dishwashers draining into the tank, it can back up into the house if full.
Installing a new septic tank system averages $3,900. Prices range from $1,500 to $5,000 for a 1,250 gallon tank. This includes the tank costing $600 to $2,100.
Leaving holding tanks unclean for long builds up solids. This can cause system failure with sewage flowing back into restrooms. Aerobic septic systems range in price from $8,000 to $20,000.
Pumping out a 2,000 gallon holding tank at 28 cents per gallon costs around $560. Pump-outs should be performed when the holding tank is two-thirds full. This prevents solids from clogging the hose. Using a marine grade hose designed for pumping holding tanks is important.
More household water use requires more frequent pumping. Tanks pumped weekly have high water use. Holding tanks install for less than septic systems since no drain field is needed.
Prevent holding tank smells by pumping regularly. Frequent pumping is a financial burden. Many areas in the U.S. discourage or prohibit holding tank installation.