Asap plumbing installed a gallon water heater for us i was very pleased with the service everything went well. Use baking soda and lemon juice like you would use baking soda and vinegar pour the baking soda and the lemon juice down the drain and cover it for about minutes then, rinse with hot water for about minutes. Is your boiler playing up? or is it just time to get a new a rated energy efficitent boiler? then why not give us a call? If there is a problem with a sewer or drain at your.