Is there a way to safely drain the coolant from the radiator so it can be reused? I just replaced the coolant and radiator, but continue to have a leak from the lower hose at the radiator. I bought a new hose and intend to replace use a screw tighten hose clamp as opposed to the squeeze to open clamp. Pretty certain the lower hose is original and has 231K miles on it. It’s not a deal killer, but I’d like to save a reuse the coolant. Is there a way to attach a hose to the drain valve on the radiator?