We have a condo in Northern WI that gets used sporadically over the winter, we keep the furnace running at a low temp while we are not there. Last winter the furnace condensate draining into the septic ended up freezing and blocking the pipe where it lets out into the septic system well outside of the house, we believe due to the constant very slow drip and small flow of furnace condensate.
Is there some kind of system that we could set up to collect water coming from the furnace until it reaches a larger volume (i.e. a gallon etc.) and then drain it all at the same time, to avoid the slow drip of water into the below-freezing septic pipe? I see furnace condensate pumps, we could set one of these up, but we don't really need the pump part, we just need something that will build up water and then release it all when it hits a set volume.