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water flow stops,when bleeding system
Recently i replaced few items in my hydronic finned baseboard system,(as expansion tank, air vent valve, pressure relieve valve and rebuilt all inline valves),so system was drained out. Now I fill system with water and start to bleed air out of it.As usual I closed return valve to boiler,opened line drain valve and set water feeder to manual(full street pressure).In the beginning water goes down well,with air,then flow is slowing down and stops almost completely.I have to close drain valve,open returned water valve to boiler and set feed valve to auto .When pressure rises again,everything's repeating. No constant water flow. I have 2 loops upstairs,but only 1 circulating pump. There are no bleeders on baseboards.
Any suggestions ?