Pump and filters

"Haymish Pupkin" wrote in message
...

"Snooze" wrote in message
. ..

"Haymish Pupkin" wrote in message
.uk...
I will be using a clarke hippo 2 pump (which I have used before, cheap and
cheerful) on my 6 meter high waterfall. This pump has a max flow rate of 85
L/Min. With this in mind I was looking to match the pump with a Hozelock
Bioforce 9000 UVC, however, at max rate the pump can pump about 5000 litres
per hour but I know this will be reduced as the pump is pumping 6 metres up
in the air before it reaches the filter. My question is this; does anyone
have any idea how much the flow rate will be reduced or how I could find
out? If the flow rate is halved I could use the Hozelock Bioforce 4500 UVC
instead.

What happens if you exceed the max flow rate on the Hozelock Bioforce range
of filters? Will the unit die because the pressure is too high or will it
just not filter the water as well as it should?


Lifting water a column of water 6 meters? That's probably well out of spec of
any consumer water pump. Assuming no other restrictions on the water flow.
The water itself would create about 8.5 psi of back pressure, I would be
surprised if you produced more then a trickle.


Water comes gushing out at the top no problems. The Hippo has a max head of 6
metres but I think to be honest the waterfall is more like 7 metres, however,
because it's on three tiers there are a couple of points where it travels
horizontally for a few feet.

They have some of the specs for the hippo 2 he

http://www.machinemart.co.uk/product.asp?p=051010190


A 6 meter waterfal is rather high, most of us here have 1 meter or less. 6
meters is upto the roof of a 2 story building.


Yes the outlet at the top of the fall is about the same height as the roof of
our house.


Does anyone have the phone or e-mail address for the Clarke (hippo) water
pump people?

The all seeing eye of Google knows everything.
http://www.clarkeinternational.com/
Their website is fairly useless, but I suppose it satisfies the answer to the
question "Do you have a website?"


Thanks for that. I did google, honest but as my gran used to say 'I couldn't
see for lookin' what ever that means.


-S

I believe they make a Hippo 3, which has a higher output (I believe it is rated
at 100 L/min. If you are concerned, and have the money to spend, you might try
upgrading to that pump.