. . . But, by doing it yourself, you are a) forced into a deeper understanding of the principles involved, b) get something that may fit a niche better than something off the shelf, and c) most importantly, have some fun building something. I know some people might not enjoy tinkering around with stuff like this, but I and many others do it just for the sake of having fun building something rather than strictly to save money.
If you used a screw type of plastic jar, couldn't you make it so it would stay out of the tank? As long as you had a in and out tube I would think you could still run the power head to filter the water?
You make a great point here, one that will stick in my mind but I think you meant fluval not Eheim! lol
Not rain on anybody's parade. But the cost list above is incomplete. It doesnt include the cost of gas to run around to all the stores to get the stuff, nor the wear and tear cost on the car, It also doesn't include the value of the time involved. You can earn 8-10 bucks an hour flipping burgers. So if you spent 5 hours on the project- including getting everything, then there is another 40-50 bucks of cost.
My guess is the true cost of the diy filter is really over $100, Checkout what equipment you can buy online for that- even paying for shipping.
There are only two reasons i can see for doing anything DIY. The first is because exactly what you need isnt available premade. The second is because you enjoy doing it. It is very rare for anything DIY actually to cost less than premade.
I'm sure he meant Ehiem. LOL.
Enough has been said in the positive that I don't need to add anymore other than great work. I also like to tinker and have thought some on how to make a cheap canister for outside the tank. Maybe a light hearted and friendly competition after the holidays to see who can come up with a certain size (for a 20 gal say) DIY external canister filter would be fun. Perhaps we can come up with a common sized cheap powerhead for flow and let the competition start from there... Just some thoughts.
Q
Yes diy can be fun. But there is a reason I am not a huge fan.
The manufacturers of premade equipment are very likely to have subjected their designs to all sorts of tests. They dont want seals to give, electronics to fail, filters to stop etc etc. Hopefully the specs for all the parts resulted from the nature of the materieals and their durability. The end result is normally waranteed for some period after purchase.
Using the example of the diy filter in this thread, it looks great, wans't a big cash outlay and gave the builder satisfaction to make. I assume it is working fine now. But my issue is how long will it continue to do so. My emperor 400 has been running fine for over 8 years, I have never had a properly maintained AquaClear fail and my oldest is about 8 years now. My two Eheims also work great. But yes I have had a few premade things break down.
Now as to why this can be a serious consideration for some. Equipment failures often kill fish. The more attached to your fish you are, or the more expensive they may be, the more you don't want to lose them to equipment failure.
I have had a number of my fish a long time and I also have a few tanks with pretty expensive fish that I breed. I am not willing to put them at risk primarily to satisfy my desire to tinker.
Over time a diy piece of equipment is much more likely to fail. So I try to limit my DIY projects to things that I have no choice on.
As for mentioning flipping burgers- it comes from economics. If you are interested, you can google either economic or opportunity cost.![]()