Pond Bottom Drain Help - Koi Forum - Koi-Bito Magazine

parepaul · 03-11-2008

iam currently reconstructing my pond to improve water capacity, water quality and filtration, so in addition to this pond renovation, i decided to put a bottom drain. when the pond is finished, the pond will have a capacity of 550-600 gallons.

the problem that is bothering me now is having to choose the perfect pond bottom drain that will be used with a pond liner. i have been browsing the web for the past 2 days in search of that perfect bottom drain.
these are the bottom drains that i have in mind.

cheapest through ebay

cheapest through ebay.

so could anyone point me in the right direction of bottom drains that was made for pond liners, please have in mind that this will only be a 550-600 gallon pond; and please discuss any experiences/insights from bottoms drains showed above, as a matter of fact, feel free to discuss any pond bottom drain experiences! thanks in advance!

Nancy M. · 03-12-2008

Quote:

Originally Posted by parepaul

iam currently reconstructing my pond to improve water capacity, water quality and filtration, so in addition to this pond renovation, i decided to put a bottom drain. when the pond is finished, the pond will have a capacity of 550-600 gallons.

the problem that is bothering me now is having to choose the perfect pond bottom drain that will be used with a pond liner. i have been browsing the web for the past 2 days in search of that perfect bottom drain.
these are the bottom drains that i have in mind.

cheapest through ebay

so could anyone point me in the right direction of bottom drains that was made for pond liners, please have in mind that this will only be a 550-600 gallon pond; and please discuss any experiences/insights from bottoms drains showed above, as a matter of fact, feel free to discuss any pond bottom drain experiences! thanks in advance!

For your size pond the tetra is a good drain, very easy to install into liner.
Nancy M.

koiczar · 03-13-2008

Nancy is correct. Besides, I would recommend the 3" drain which you show on the top photo. There is no "pot" for any waste to get caught in. Simply glue in what is called an ABS street ell sweep. Works great for that size tank/pond!

Mike

parepaul · 03-13-2008

thanks for the reply/help guys!

kent wallace · 03-16-2008

The problems with the Tetra are the gap between pond bottom and dome is too large and unadjustable and the lip created by the clamp ring is very tall. Most drains are too large for your pond to begin with. Do you also have some type of skimmer? Believe it or not a 2 inch bottom drain is plenty for that size pond when combined with a skimmer.

mstrseed · 03-16-2008

Kent,

If the gap is too large could you not turn it upside down drill some holes in the dome for a grip (or if hollow to anchor it) use tape for a collar and use SikaFlex and close the gap..................

Just a thought........................

parepaul · 03-17-2008

i overcame the huge gap by digging the tetra drain deeper so that it uses the side of the dome for the opening; i've also reduced the drain hole to 2" with a PVC bushing.
and im only using the drain to flush wastes from the bottom of the pond.

03-11-2008	#1 (permalink)
parepaul Fry Join Date: Mar 2008 Posts: 3	Pond Bottom Drain Help iam currently reconstructing my pond to improve water capacity, water quality and filtration, so in addition to this pond renovation, i decided to put a bottom drain. when the pond is finished, the pond will have a capacity of 550-600 gallons. the problem that is bothering me now is having to choose the perfect pond bottom drain that will be used with a pond liner. i have been browsing the web for the past 2 days in search of that perfect bottom drain. these are the bottom drains that i have in mind. cheapest through ebay cheapest through ebay. so could anyone point me in the right direction of bottom drains that was made for pond liners, please have in mind that this will only be a 550-600 gallon pond; and please discuss any experiences/insights from bottoms drains showed above, as a matter of fact, feel free to discuss any pond bottom drain experiences! thanks in advance!

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03-13-2008	#3 (permalink)
koiczar Oyagoi Join Date: Sep 2005 Posts: 2,174	Nancy is correct. Besides, I would recommend the 3" drain which you show on the top photo. There is no "pot" for any waste to get caught in. Simply glue in what is called an ABS street ell sweep. Works great for that size tank/pond! Mike

03-13-2008	#4 (permalink)
parepaul Fry Join Date: Mar 2008 Posts: 3	thanks for the reply/help guys!

03-16-2008	#5 (permalink)
kent wallace Nisai Join Date: Sep 2005 Posts: 88	The problems with the Tetra are the gap between pond bottom and dome is too large and unadjustable and the lip created by the clamp ring is very tall. Most drains are too large for your pond to begin with. Do you also have some type of skimmer? Believe it or not a 2 inch bottom drain is plenty for that size pond when combined with a skimmer.

03-16-2008	#6 (permalink)
mstrseed Jumbo Join Date: Oct 2006 Location: Georgetown, Texas USA Posts: 678	Kent, If the gap is too large could you not turn it upside down drill some holes in the dome for a grip (or if hollow to anchor it) use tape for a collar and use SikaFlex and close the gap.................. Just a thought........................

03-17-2008	#7 (permalink)
parepaul Fry Join Date: Mar 2008 Posts: 3	i overcame the huge gap by digging the tetra drain deeper so that it uses the side of the dome for the opening; i've also reduced the drain hole to 2" with a PVC bushing. and im only using the drain to flush wastes from the bottom of the pond.