Glass Cage warranty........

[Yaktop]

..... only 90 days for leakage

Due to the manufacturing techniques eliminating pressure bonding: stress and pressure cracks and all other types of breakage are not caused by manufacturing defects and therefore are not warranted and no free replacdement is available. Breakage that occurs after the aquarium is set up is caused by improper set up or accident.


any experience with using Tunze Wave boxes?

 

[Jocko]

Wow thats a good question. Not that I'm gonna be using a wave box. Honestly, you might just want to call up Tom at GC and ask him.

 

[MikeG]

I though it was accepted that a wavebox would lower the average lifespan by about 10% because of stress on the seams, so maybe 1-2 years if the average life is between 10-20 years. Don't remember where I heard this though.

 

[RichConley]

I though it was accepted that a wavebox would lower the average lifespan by about 10% because of stress on the seams, so maybe 1-2 years if the average life is between 10-20 years. Don't remember where I heard this though.

I'm not totally convinced that a wavebox makes a difference. We're only talking about the top 2-3" of water moving back and forth... as long as its built properly, it shouldnt be flexing.


I honestly think it would do worse things to an acrylic tank than a glass one.

 

[Liam]

I'm not totally convinced that a wavebox makes a difference. We're only talking about the top 2-3" of water moving back and forth... as long as its built properly, it shouldnt be flexing.


I honestly think it would do worse things to an acrylic tank than a glass one.

a wavebox does more than just move the top 2-3 inches of water

 

[smcnally]

I'm not totally convinced that a wavebox makes a difference. We're only talking about the top 2-3" of water moving back and forth... as long as its built properly, it shouldnt be flexing.


I honestly think it would do worse things to an acrylic tank than a glass one.

Rich a wavebox moves all of the water, it just causes it to swell 2-3". It is a lot of weight moving side to side and if you go to far it will cause the whole tank and stand to rock.

 

[dz6t]

Rich a wavebox moves all of the water, it just causes it to swell 2-3". It is a lot of weight moving side to side and if you go to far it will cause the whole tank and stand to rock.

are you talking from speculation or from your personal experience?

 

[TomD]

Rich a wavebox moves all of the water, it just causes it to swell 2-3". It is a lot of weight moving side to side and if you go to far it will cause the whole tank and stand to rock.

I was thinking of eventually using one as I get more and more SPS but on the 6th floor of a condominium.....I don't think so

 

[smcnally]

are you talking from speculation or from your personal experience?

Dong, it is common sense. The port that the water goes in and out of is close to the bottom of the tank. In order for the surface to go up and down 2-3 inches, every thing below it must move as well. It works by displacing water, and the water is displaced through a hole down low. These do not just produce a surface wave.

 

[NateHanson]

Yes, but the weight going back and forth is not the entire weight of the tank. The weight difference is just the top inch or so. That's not an insignificant weight of water (easily 10 gallons in a large tank), but it's not like 2,000 pounds of water are being thrown from one end of the tank to the other every 20 seconds. To do that, the tank would have to be empty on one end, and then empty on the other end with each wave cycle.

 

[smcnally]

I'm sure there are some crazy calculations that go into how much weight is acually displaced. What I do know though is if you take a 50 gallon tank and fill it 3" with water and wave it back and forth, the push and pull of the waves doesn't seem nearly as strong as a tank filled almost all the way up doing the same thing.

 

[NateHanson]

If you move the whole tank back and forth, then you ARE making the tank side stop all 50 gallons of water. 50 gallons gets accelerated to the right, then when the glass tank is stopped and moved the other way, 50 gallons has to stop moving right, and turn around to accelerate to the left. That's a lot of force. But with a Wave box, the only NET movement of weight (it would seem to me) is a couple gallons in a tank that size, since everything stays in place except that the water level on one end goes up an inch, and the other end falls an inch. The glass only has to absorb the force of the net amount of water that's actually switching sides. If the force were relative to the gross amount of water moving in the tank, then even a simple power head would cause thousands of pounds of pressure against the side of the tank (but in reality, the exact same weight of water shot out of a powerhead is also moving in the opposite direction towards the powerhead, so there is no net acceleration of water against the end of the tank.

Ok. Now the physicists can step in and have a field day with my explanation.

 

[smcnally]

I disagree with you Nate. Have you ever seen one in person? It moves water from the bottom up which means it moves almost all of the water in the tank back and forth (not just the top few inches). The top few inches are just what you see moving. I wish Greg or Liam would chime in here because anyone that has seen one in person knows what I'm talking about. If you put your hands on the tank you can feel the weight displacement. As far as my description went earlier, I didn't mean moving the entire tank. Fill a 50gal tank with 3" of water and make the water wave using a paddle. Then fill the same tank most of the way, stick the paddle all the way down and make 3" waves. You will absolutely feel a difference in the force on the paddle.

 

[Liam]

it seems to me that the wavebox does more than just displace a certain volume,it also creates a momentum that moves a good portion of the tank volume back and forth several inches ,that figure may be larger in a longer tank but i would say several inches in my 4 foot tank

 

[Yaktop]

this thread wasnt intended to be a wave box thread but a glass cage thread. obviously what people dont see they dont understand, thats fine. Over time the weight pulsing back and forth MUST create stress. Glass cages offers a 90 day warranty, our sponsor Aquariums for you a standard 3 year warranty with options to 10.

has anyone experience issues? GC is cheaper but is it a case of getting what you pay for?

ps. Nate, refrain from my threads - thank you.

 

[Tstone]

Ed is rockin today.

I agree with Shmally.

As far as the warranty I think that kinda sux. I was about to order my next tank from them. I am planning on a wavebox too. i wonder if a surge tank would be less stressful for the tank?

Anyway 90 days ain't much

 

[Greg Hiller]

forget it.

 

[Aquaman_68]

forget it.

Can't you delete your posts, Greg?

 

[Yaktop]

yup, although that was decided before I started the thread.

 

[Moe_K]

I moved this out of the VE forum and into Reef Talk.
Doesn't really work with the VE forum rules, but it's a good discussion.