Installing a new washer, I found the drain hose is too short to reach the sink it will drain into. The old washer had the drain hose coming out of the right side of the appliance but this one has the hose coming out of the left side.
There is a standpipe in the ground in front of the washer, but it has much too little vertical drop to be used for the washer. So, I need to get the washer draining into the sink as the last one did.
How can I extend the washer's drain hose without it leaking? Turning the water on only during a wash will help avoid any bad leaks, and beneath the drain hose is just concrete in a utility room that is very dry most of the time (low humidity, moisture seeps into floors only during big snowmelts) so some leaking is not catastrophic - still I'd rather set this up so it works properly by design.
The major challenge I see is the washer drain hose being horizontal when I extend it fully. Horizontal pipe couplings seem more prone to leak to my non-expert intuition. If I coupled the washer's hose with an extension vertically, it would add a significant amount of turns and length to the overall drain hose.
Here's the setup:
Can I just find a rubber hose that has a diameter large enough to contain the washer's hose, then insert the washer's hose ~1 inch into the larger diameter extension, and clamp them together using a hose clamp?