Sorry 3 days for a heat only changeover that’s ridiculous, 4 hours is possible depending size £500 for less than a days work then I wouldn’t be in a rush
Filter on flow isn’t a problem, not efficient allows contamination through boiler before collection but acceptable in manufacturer instructions
Pump definitely in wrong position and wrong direction
Why fit a drain point above boiler when it’s already built in (not relevant but questions knowledge of boiler)
What size ri is fitted and how many rads as boiler could be too powerful, what boiler was removed
Is Automatic bypass correctly fitted
List could be endless
Filter on flow isn’t a problem, not efficient allows contamination through boiler before collection but acceptable in manufacturer instructions
Pump definitely in wrong position and wrong direction
Why fit a drain point above boiler when it’s already built in (not relevant but questions knowledge of boiler)
What size ri is fitted and how many rads as boiler could be too powerful, what boiler was removed
Is Automatic bypass correctly fitted
List could be endless