I also forgot to ask how I would link up the Grundfos pump pond end e.g.
wouldn't it need a filter of some sort on the end?

Richard

"Richard Kerry" wrote in message
...
Oops - to finish my previous sentence:

"And checking the Grundfos web site won't this pump be affected by" the
cold e.g. the pump operating temperature is above zero as the mininum....

Richard

"Richard Kerry" wrote in message
...
Hi Bob,

Thanks again....so, how do I configure a workable filters, UV & Grundfos
pumps combination?

How do I know which pump would be suitable for a pond my size today and
tommorow? If I went down the Grundfos route how do I know if the pump is
suitable, what am I looking for when I speak with the plumbing chaps?

If I decided not to use the pressurised system, how would I configure a
filter (standard box type), UV & Grundfos pump setup? How many gph/lph
for the pump to process? What size UV, presumably installed in line??

You also mention that the pump needs to be below water level? Does this
mean below the water line or below the bottom of the pond? Either way it
would seem that I would have to dig a (waterproofed) hole for
installation? And what about connectors? And checking the Grundfos web
site won't this pump be affected by

Apologies for so many questions, yet again! The more I learn the more I
realise the more I need to learn...........

kind regards,
Richard


"Bob Hobden" wrote in message
...

"Richard Kerry" wrote .
Many thanks for all the useful advice, now I have even more questions
I'm afraid! The pond we inherited is about 7 years old so the "Koi"
seem to have been ok in their existing environment, longer term (end of
05) I'd like to dig the pond out so the advice I need is to get the
appropriate pump and filters that will work today and also in the
future.

Where do I get a CH pump from? Do I need a CH pump for heating and an
ordinary pump for the filters? Is a CH pump energy effecient as I've
seen some inexpensive (aka cheap) pumps running crazy currents so NOT a
good idea 24/7.

You get a Central Heating (Grundfos) pump from any good plumbers
merchant that sells radiators etc. and although some koi keepers do heat
their ponds a bit in the winter it isn't necessary. I and others use a
CH pump for the filters.
Yes a central heating pump is very efficient, probably the most
efficient type of pump.
This is the sort of thing http://www.plumbworld.co.uk/348-195



Also, if I got for the system I indicated on my orgininal post I wonder
whether using an standard box filter with the EcoClear 18000 would work
as the EcoClear is a pressurised system or would that make no
difference?

Put it after the pressurised filter and it will "polish" the water
making it crystal clear. If you go down the CH pump route you need to
discuss with the plumbers merchant what pump you need to give you the
pressure (or head) to run your "pressurised" filter, but what's the
advantage of the pressure filter over the sort you already have? The
water has to have time in the filter for the bacteria to work, pumping
it through at speed will not work.

Can I also get new materials for my existing filter should I wish to
continue using it?

Yes you can, either from an aquatic shop like the one whose URL I
already mentioned or get some Filter Foam from a foam shop, but wash it
thoroughly before use.

--
Regards
Bob
In Runnymede, 17 miles West of London