The easiest way to do a 40% water change?

[hinch]

small pond pump or a power head hooked to a hose will work fine failing that hose directly onto the tap mains pressure will cover any distance no problems

 

[jellyfish6]

I want to premix the water before the tank so I'll need a pump. (The bath tap is a funny shape). Just wondering what I can get away with really.

 

[hinch]

something like this will do it

http://www.allpondsolutions.co.uk/aquar ... 0-l-h.html

just push a hose pipe over the outlet (since its round not square like some other powerheads)

 

[Quetzalcoatl]

I want to premix the water before the tank so I'll need a pump. (The bath tap is a funny shape). Just wondering what I can get away with really.

Hi mate. I use one of these. The 1000 Variation - 150/1000lph
http://www.swelluk.com/aquarium/pumps-and-powerheads-33/water-pumps-206/eheim-compact-pumps-290.html

I connect some 16 mm hose pipe, drop it in the tank and pump out 50%. I have a 80 litre storage container outside which I fill with tap water and condition it. I then drop the pump in the storage container and pump the treated water back into the tank. Simples.
The flow is fully adjustable on these units aswell, so you could use it in the tank to generate some extra flow also if you wanted to?

 

[jellyfish6]

Great. Thanks guy's.

 

[Palm Tree]

I use a 1.5inch hose to drain then a hosepipe coneceted to the kitchen tap to fill but my new idea is to get a 200l or 300l waterbutt, fill it with water the night before and let it get to room temp then add dechlorinator (seahem safe) then when I want to do a wc I can just drain water out the door into the garden and pump the water from the waterbutt using a fast pump. Can anyone think of any problems with my idea? It would make water changes so much easier and faster I could do them twice a week.

 

[Gfish]

Can't see a problem with your idea, but it will save you using de chlorinator. Leaving the water standing overnight does the job of chlorine evaporating.

 

[Palm Tree]

I thought about the chlorine evaporating but I thought as a water butt has a small surface area all the chlorine wouldnt evaporate.Im gonna get some seachem safe,its a dry powder dechlorinator and you can get 250g for £13.39 off ebay and I think that will treat 150,000l of water.