John,

For your size pond the recommended would be 80 watt, which is 2 - 40 watt
units in manufactured series. It has a recommended flow rate of about 20
gpm max for the dwell time/exposure to work. The cost of two 40 watt units
is less than he price of one 80 watt unit. I would try one and if it worked
save the cost of the second. If not, then add a second.
--
RichToyBox
http://www.geocities.com/richtoybox/pondintro.html


"John Rutz" wrote in message
...

Ok so i should be able to get this from the catalog website but they
dont seem to address this or Im missing it

how oftern should the pond volume go thru the UV? or how many gph
should the thing be capable of based on my pond being 8000+ gallons?

the ones I have found that can take my pumps are in the 5000-8000 dollar
range OMG
--





John Rutz
Z5 New Mexico

good judgement comes from bad experience, and that comes from bad
judgement

see my pond at:

http://www.fuerjefe.com