Please check the shipping address listed in your paypal transaction as you check out! If that address is wrong contact me ASAP since I pack and ship orders quickly and I do it based on the address paypal gives me. I prefer you have a confirmed paypal address since unconfirmed addresses mean I need to confirm the shipping address with you (this takes time and can delay shipping.) If you get an e-mail from me with a subject like Re: Payment received from your e-mail@your it is me trying to confirm something about your order before I can ship, please open it and respond if you want your order shipped asap. I do not earn money on the shipping. The paypal calculator is not very flexible so if it over charges you for shipping, I will refund the difference. There is a place on paypal where you can add instructions about shipping (for instance if the shipping address is a business address according to UPS/Fed Ex it might allow me to save you money on shipping for certain products if I know about it, otherwise I have to assume residential shipping. If you add your phone number there I can use your phone number if I ship via Fed Ex for certain products and they can call you if there is an issue with delivery.) If Paypal doesn't charge you for shipping, it is probably because you are in another country or someplace I don't normally ship to, I will be contacting you about it since I will need to find out the shipping costs to your location and send you an invoice for the shipping or refund your order if I can not ship to you or if you don't want to pay the shipping. I normally Sell in the USA but have occasionally shipped packages internationally. Plants and Fish I only sell in Florida at this time and I am not set up to ship fish yet.

Return and Refund Policy

I try very hard to quickly answer questions about products before the sale. If you are uncertain about a product please ask, I want to make sure that what you buy is what you need and what will actually work for you. If you buy a product and change your mind about it later and want to return it, I will have to charge a re-stocking fee and I can only accept returns on unused items. I can only make refunds for 60 days after the purchase through paypal. I do not refund the shipping or pay return shipping unless the reason for the return is on my end. Please contact me for instructions before returning anything. If I'm not expecting something to come back, I won't know what to do with it if it actually makes it to me. Some packages are shipped direct from the manufacturer and simply mailing something back to them won't get you a refund. If there is a problem with a product, please contact me so we can work something out. Some items are covered by warranty.


FLOUT Family

FLOUT® Family

The FLOUT® Family of Siphon Alternatives. 1, 2, and 3 inch FLOUT® Floating Outlets designed to automatically quickly flush a tank after the level reaches the desired height no matter how slow the inflow might be. As long as the inflow to the tank/bed is slower than the max flow out of the FLOUT® and through the pipes, the FLOUT® will drain the tank no matter how slow the inflow is. Far more clock work than siphons. Can be used to replace the siphon/bottle flapper valve of a barrel system (no more fishing leaders to break or bottles to clog or flappers to break.) 1″ FLOUT® can be installed directly in grow beds to flood and drain constant inflow beds. 2″ FLOUT® makes a perfect flush tank valve. 3″ FLOUT® is probably a bit large for most average Aquaponics applications but may be appropriate to drain a combined bank of grow beds automatically or for some other specialized applications.

1inch flout

The improved 1inch outlet delivers 7 gpm from drawdowns starting at 3 inches.

Currently FLOUT® ships by USPS though we are looking at UPS as well so make sure your paypal address can handle either one, or leave me notes about shipping when you check out.

1 inch FLOUT®

starting at $60

(let me know if you will be buying more than one, I can probably discount the shipping on multiples of these but the paypal shipping calculator isn’t making it easy so I’ll have to do it on an individual basis)

With the 1 inch FLOUT® starting at $60 it is priced to compete with more problematic siphon kits. The FLOUT® does take a little more space in a grow bed but it will be far more reliable. Especially if you are cutting it a little close on heights to get enough fall to let the siphons work easy. As long as the water gets to drain to the bottom of the grow bed, the FLOUT® will re-float.

No, sorry the FLOUT® still won’t make water go up hill.

2inch flout

The new 2 inch outlet delivers 28 gpm or more from drawdowns as low as 4 inches.


Starting at $90


A good option for flush tanks or large deeper grow beds or for doing fast flood of grow beds and allowing them to drain more slowly. I think the 2″ FLOUT® are going to be very useful for many applications in aquaponics and I’m so excited to finally get to offer them.

I’ve been waiting for over a year to start selling these.

And finally,

The Big daddy of them all,

The Original 3 inch FLOUT®.

NOT to be installed in the fish tank without a cage to protect small fish from being sucked away!!!  Well, installing a FLOUT® in a fish tank would require a shelf to keep the FLOUT® from dropping past horizontal so not really recommended anyway.

3inch flout

The original three inch outlet delivers 65 gpm or more from drawdowns as low as six inches.


Starting at $125


The three inch FLOUT® are big. They will release a deluge of water that if directed into a gravel bed will really shift the gravel. These are not designed for flooding a 50 gallon tank or two they are for emptying a large tank fast. Like for dosing a leach field. Or perhaps sending the gray water out to the mulch pits or perhaps if the header tank is up high enough, they might even be of use for driving a gravity modified indexing valve, but this is definitely an advanced application and we need to talk if that is what you want to try since there are specifics to making it all work right.

Video of a 3″ FLOUT® in action.

The FLOUT® Family is the newest addition to the Aquaponic Lynx product list. Please welcome our new family.

FLOUT® were originally developed to solve siphon problems in septic system drain field dosing. This is where the large FLOUT® come from. Last spring I was attempting to use a 3″ FLOUT® to feed a gravity modified aquaponics indexing valve after my automatic low pressure valve electronics got a bug. Unfortunately my set up didn’t quite have the height I needed to make it work. For more on that topic please see the blog post.
A siphon won’t operate an indexing valve (at least not without a huge amount of height to work with) but I still have hopes that I might some day manage an indexing valve with a FLOUT®. As a siphon alternative they are great and there will also be a FLOUT HOUSE gravel guard available for them soon too.

4 comments to FLOUT®

  • That’s going out the (round) side via a 3-inch Uniseal, I take it? I think the 100-gallon RMST makes a lovely FLOUT chamber.
    And no vent. It seems to drain juust fiine without a vent. I was planning to provision a vent for my 3-incher, but after a few hundred fills ‘n’ drains, I don’t see the need to put one in. We’re not talking traditional septic application here.

    Count this as Sminfiddle’s endorsement of TC’s FLOUT offerings.

    Bear in mind, an easily obtainable plumbing fitting will split that um, EMPHATIC 3-inch flow into 2 x 2-inch equal flows going opposite directions. This is the one time you can split up a “gravity” or “siphon” flow and count on equality. These things don’t dribble!

    • TCLynx

      Yes I am plumbing it out the Round Side of the 100 gallon Rubbermaid Stock tank. I actually plumbed it out near the bottom too which was really a bad idea since there isn’t actually enough space to plumb a 3″ uniseal and I had to get really tricky to make it work. So beware that. But I don’t see it being all that likely for many people to plumb a 3″ Flout in such a fashion since a 2 inch FLOUT is likely to provide plenty of flow for most applications.

  • As you said above, a 3″ is really effective though if you’re draining a whole bank of tanks. I like to plan big!

    If you have the extra 5 to 8 inches to raise the FLOUT tank up, ’cause like all plumbing you’ll want access, a hole can be cut in the flat bottom for a good ol’ shower drain or even a “water closet flange.” Add an elbow inside (to mount the FLOUT sleeve horizontally) and one below (unless it’s right over where you want the flood to WHOOSH, like a sump tank).
    You can still get about 18″ drawdown. AKA a fill about two inches from the top!

    And I still don’t see any need to worry about venting these puppies.

    I would like to also try splitting a 3″ into two 2″ Uniseals instead of one 3″… if I can just find a 3x2x2 WYE fitting…


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