Might someone know: I am wondering if a radon mitigating system, using a house’s sump to aid in collection, has the potential to entrain water as well…if the liquid level in the sump rises just high enough?
If this is possible, can the blower (fan) handle some liquid entrainment, or is it a danger to fan and/or fan motor?
Also: since the sump is sealed, can one still manually operate the sump pump, if one desires to do so?? Can the lid sealing the sump ever be lifted if one has water in their basement, for example, to be swept into the sump? Or, is the seal broken once tampered with in this fahsion?
You can’t use the same device as a blower and a water pump very easily. The main reason is that blowers and pumps usually exploit the density of whatever they are moving to get traction - slinging the stuff outward centrifugally, or whatever. Air and water are so different in density that it dictates a very different design. Or else, if they don’t exploit the density, they use sliding pistons in cylinders, and the materials of contruction and lubrication methods are again very dependant on which substance is being handled. However, if you have only very slight intrusion of water into your sump, and if your blower is moving much air, it may be able to evaporate the water that seeps in.
I think the most straightforward approach would be to run a blower constantly to extract radon, but also install a float switch controlled sump pump to handle water when it enters. There’s no reason both devices couldn’t be installed in the same sump providing you have enough room.