Open Source $2k Tank

On 4/2/2011 7:54 AM, x2012gart wrote:



It does seem like the containment tanks are a bit shallow.

yeah, I was worried about that. I got lucky. It’s 16 inches high and the water level with no person in it is 10 inches. But there is no splashing or over-run once I step in to float.

And this is definitely not a tank for people who are not agile. I will make a video of how to enter and exit soon. It’s not hard for me because I like swimming and sports in general. But my tank will never make the day spa — just hardcore types 🙂

In the video it looks like the level of the epsom salt solution comes quite high to the brim of the lower tank. I am wondering if there are tanks that are a bit higher. I saw this site: – something like picture 98,

wow, nice find! That place is a 2-hour car drive from me! I took a look at the price list –

and my tank dimensions are more expensive. However, because theirs is made of fiberglass, you could put a radiant heater UNDER the tank, just like is done in my float to relax. No heat transfers through the plastic of my tank.

But the 16 inches I have is enough… even 14 inches would be OK. My tank is a low-rider. Black, sleek, hung low to the floor (grin).

sure these guys could do a custom size.

Well, my tank is 5 feet wide — very wide by tank standards. I asked about just making it 4 feet or so and they said the cost would be 4 times as much. I think they have certain molds already made and pre-make a huge batch of tanks so a custom job would be very expensive.

Not sure how the Pondmaster Filter System works, do you stick the
thing in the water solution and just let the end stick out the clean water flowing.

The pondmaster does not work and here are my videos to document that:

A tech support guy at Foster and Smith Aquatics suggested it, but it seems that you need a good 1 hp pump to deal with our 300 gallon saltwater systems.

Maybe would like to look at the LifeGard Aquatics and put some holes
into the bottom containment tank to pump water in and out.

Heheh, the sophisticated way. Yes, that’s how the pros do it. But I want to minimize the possibility of leaks, so I’m going to setup something similar to how Barbara Cherington did her pipe work:

But she did in fact put holes there to go into her tank. I will just manually bring the pump to the water after the float… I would like to use flexible hose, but I think the horsepower is too strong.

But again, my focus is on simplicity first. I want a soccer mom to be able to put together this tank if necessary…. lol

Heating the water seems easy and works, but some tanks clearly have
the heating under the containment tank,

yeah it depends on the material – with fiberglass that should work. But I used a 300 watt calesco waterbed heater and it didnt alter the temperature very much. Perhaps if I tried the liner approach that would work. But I’m all about fast, easy simple because I’m lazy and have a short attention span 🙂

and can keep the heating on
so during longer floats the water can stay at a consistent tempurature.

yeah, long unbroken floats are important for monk work. For your day spas where each person just does 1-hour, then passive heating is fine. But I certainly have become aware of the temperature after maybe 2 hours. It’s a fact that for the 1st hour you are radiating heat and warming the tank, so temperature becomes an issue in the 2nd hour.

And yes, temperature consistency would be better. But some floaters here are quite sensitive to electric waves and know when the heater turns on mid-float – I tend to leave the physical realm altogether, so I’ve never noticed anything like that.

of course, I could counter the whole monk argument because I’ve done zen retreats. They dont necessarily stick to one form of meditation for a long time. They might do sitting for 30-90 minutes and then walking and then back to sitting. So, if they can build up a samadhi while switching meditations, we can certainly pop out of the tank and reheat while we do some on-land meditation.

This also might be safer in terms of the electrics.

I unplug from the wall before every float so I have no worries.


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