Here is an Aqua Hot AHE-100-04S that has a Water Leak. Customer noticed water dripping out of the air intake area under the Aqua Hot. Right above that burner air intake you will find boiler water lines. These lines had press on pex fittings installed from the factory that tend to fail over time, this was the case with this repair. We replace both water lines with pex pipe and crimp on pex fittings. Great Preventative maintenance on old units. Coach is a 2007 Beaver Marquis.