I built it with stuff I had at hand, except for the nozzles. Bucket is 10 litres, I have about 5 litres of water in it. I dont think of it as very big? The cloner I bought is much bigger and also takes more clones obviously. 

True, the pump is a bit strong but thats better than being too weak. Bucket was actually carefully chosen because it has a click on lid that prevents leakage on the sides. 

But it does work as intended.