
Hello D,
Thanks for the question about "fluffing" gravel. First off, I'm not talking about "fluffing" gravel that has been sitting in a pond for a year building up muck and debris. That is a catalog marketed type kit pond that too many landscapers build - and that is not what I'm talking about here. Please re-read all my posts here and you'll better understand what I'm talking about. I am dead-set against those types of rock and gravel ponds and the way they need to be cleaned. I am on record all over the country, and on many forums stating that. "Annually cleaned ponds, and the method of cleaning them is detrimental to the health and well being of all inhabitance of a pond - including koi." Aquascape has banned me from their forum for saying that among other things.
Now, to what I'm
really talking about
: I recommend "fluffing" the gravel in a rock & gravel
Hybrid pond at least once a month - preferably not all at once. A different 1/4 section of the pond each week is best. It takes just a few minutes. This way - you'll be keeping debris removed on a continous basis so it doesn't have a chance to build up to harmful levels. Of course, this is all predicated on having a biofilter that is backflushable and a mechanical filter to remove the larger debris. (Pad & Lava Rock type filters are not backflushable - and are NOT recommended)
Gravel in Hybrid ponds is not like the 100% river rock found in most pad&lava rock filtered kit ponds. The gravel in Hybrid ponds is more like aquarium gravel that is a mostly pea gravel with a mixture rate of 60% 3/8"-1/2" pea gravel, 20% 1"-2" drain rock, and 20% 4"-8" river rock for cosmetics. As you know, river rock is typically 4"-8" in size with massive "gaps" between the boulders that trap lots of debris. This is a big problem with catalog marketed kit pond types that landscapers build. Most people that install them use way too much river rock. With a higher concectration of 3/8"-1/2" pea gravel, the "gaps" are reduced by over 90% while increasing the total surface area for bio-film growth. With most of the "gaps" filled with pea gravel - leaves, needles, and twigs that the pond skimmer didn't catch won't get trapped "in" the gravel - they'll rest on top for easy removal with a net or tongs.
Pea gravel is super easy to "fluff". Most people simply use their garden hose connected to 3/4" PVC pipe with a nozzle at the end. The PVC pipe should be long enough to reach the bottom of the pond from a standing position. Turn on the faucet - and gently poke the nozzle into the pea gravel mixture. When done regularly - and that is the key - only small amounts of detritus will "fluff" up into a cloud in the water. Add a scoop or two of Koi Clay or a flocculent to your pump's intake - and the cloud will quickly get trapped in the mechanical filter and the first stage of your biofilter. Simply backflush it away.
This makes draining the pond, removing the fish, pressure washing the gravel, and vacuuming muck a thing of the past!
Is this method as easy as keeping bare liner ponds clean?
Absolutely not. What it is intended for is to improve koi and other fishes living conditions in rock and gravel type ponds. Thats it. It is not intened to replace traditional koi ponds. Infact, it is learning from people such as you - the importance of "clean" living conditions for koi. I do listen to folks like all of you here.
I don't know how you think I'm dominating the conversation here - these posts where created by others - and I'm merely responding to accusations, misrepresentations, and answering questions that are asked of me.
I don't know who you are, or where we've met - but if you're in the Seattle area please stop by for a visit - I'll buy you lunch and you can tell me all the things you disagree with me about and what I should do to change. Hopefuly we can become friends and learn from each other.
Looking forward to meeting you.
Sincerely,
John Russell