I have a electric powerwasher. Is it possible to feed it water from a tank such as a 5 gal bucket? I won’t need a lot of water. Just a blast or two. How can i fit something on the bottom of the bucket so it accepts a garden hose? Are there any adapters out there? If not, would drilling a hole on the bottom and sticking a hose up in and sealing the edge with waterproof caulking or something work? If the bucket is held higher than the pressure washer, will gravity be enough to feed it?
If i buy an adapter that will screw into the bucket, what kind of adapter for a garden hose? And how will it not leak without some sort of caulking?
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Might work. Best chance for success is using adapters, not caulking. Adapters are available at home improvement stores so you can connect ordinary garden hose. Drill a hole in bucket. You may then be able to just screw in the hose adapter with maybe only a washer. Maybe can get a faucet with on/off handle. Convenient when disconnecting.
Hang it as high as possible because it will increase water pressure. Hang it high up on a tree if possible, using rope.
Do only very short blasts.
It’s possible using PVC. You can drill a hole and install a bulkhead adapter. Then buy the plumbing connectors to mate everything together. You’ll get at most about 1-2 minutes of spray time as pressure washers spray about 3 gals per minute. Gravity should be enough to supply 3 gals per minute.
I’m not thinking "gravity feed" is going to give you enough volume to keep the pump primed.
If this is something you need to do for an ongoing problem I would recommend using a more solid tank that could hold pressure. If you attached a sealed non-leaking tank to a supply system it would charge up to the pressure available from your system by compressing the trapped air. (Or you could introduce fittings to increase pressure, but air space needs to be present to compress.)