Roman drains with warm spring water could be used for eco - tourism . 850,000 gallons of warm spring water filters to Avon each day at present . This waste water can be used to supply residential Abbey in the historic city . Engineers are looking at drains to explore whether the idea is viable .
Roman drains with warm spring water could be used for eco-heating . 850,000 litres of waste spring water filters to Avon each day at present . This waste water could be used to heat Bath Abbey in the historic city . Engineers are looking at drains to explore whether the idea is viable .