Simply Koi and More Koi

I'd grind back to the matting - tried 'just sanding' before and regretted it - read somewhere that 'any trace of gelcoat will cause a problem' and I know gelcoat and flowcoat are different, but this is one of those jobs you only want to do once. Also, I'd use tape along the crack just to make sure, ...

An alternative to an open pipe that is empty when not 'heating' is a closed loop, half in the solar panel and half in the filter bay. When the sun is out, the small solar pump will circulate the water and when it is not it won't - but the head and pump capacity will be much less of an issue (althoug...

I have a new pump on my Nexus and have set it up so that it can either pump direct back to the pond or through a couple of heat exchangers, a heater and a bubble bead and I suspect, if it does all that, the flow will be somewhat reduced. I have a spare pump ready for when/if my new pump dies but as ...

I built the pond and thought I'd worry about nice details like overflow and auto-fill later. Well, now is later.... The Certikin skimmer has 2 nice pipe connection points just for the purpose though I can't get to them as I have a steel beam in the way. Anyone had experience of drilling a hole in a ...

The only 'reverse flow' returns I have come across have simply been returns which are valved to allow selected returns to be used and for these to swapped in order to reverse the flow of water back into the pond. My personal view is that whilst nice to have, it is one more potential problem should s...

Can't he go pond to sieve to pump to vortexes (ie pump into the vortexes instead of out of them)? Would mean no need for equalisation but does have the disadvantage that any blcokage of the fluidised bed or after would result in overflow - but you have that risk already. I have a Cetus and think it ...

Am a member of South Hants and that was where I was gonna call - but hopefully I won't need to due to the genius we know as Vippymini.... I have left my 4 foot vertical pipe with 100lts/min airline acting as an airlift to give it a bit more suck - hopefully by the time I get back tonight it will hav...

a) Yep - thought of Jules but would rather not drag him 2 hours each way just to get uncomfortable (but happy to have him if he is able to fit it in) b) Thought about hoses but think I have to do it from the pond end as I have a 4 foot vertical to a 90 degree bend then long pipe run to the drain - a...

I don't think there is a specific angle of orientation - how effective the cover is depends on the angle, the amount of water / condensation and the properties of the cover (and how clean it is, etc). To explain my point, the ideal angle for maximum run off is obviously 90 degrees (ie vertical) but ...

There is a reason why so many people have decking covers over their MFS.....

It is easy to work with, looks OK (as long as you don't over do it) and can be hinged or lifted on the odd occasion you need the access.

Am with Capt. Nemo on this one - if you don't have room to insert the centre pipe easily and to remove the Eazy without moving the Nexus, sooner of later you will regret it. Are you building the concrete roof or fitting it into an exisiting void? If you have the option, I'd go for something removabl...

I'd add that if you get any moisture into the resin before it has fully cured during any part of the process it will ruin the fibreglass - so you have to find a way to get the pond completely dry before you start and keep it that way until you finish. Also, you really need to get the temperature up ...

I'd say this is a 'how long is a piece of string' question - but if you start thinking about £1,500 per 1,000 gallons plus fibreglassing costs on top of that, you should not be too horrified. Am sure in the current financial climate you can find builders who will do it for less and there are always ...

If I read it right - it says that at an ambient temp of 15 degrees and a water temp of 28 degrees, you get the stated 4.1x co-efficient and that drops toabout half that if the air temp drops to (our winter average of) 6 degrees. But assuming you are only trying to hold the temperature at, say, 16 de...

This is one of those questions that everyone argues about and in the end, it comes down to personal preference. My answer would be that the pond is too shallow and probably too small to get a temperature gradient between surface and bottom, so I'd argue that slightly colder but better oxygenated and...