HARDWARE
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PUMPS FOR MOVING WATER CLAMP 
AGING WATER TUBS OVERFLOW BOX
PYTHON GREEN THINGY BUCKET FILTER
GRAVITY FILTER FOR INDOOR POND
PUMPS FOR MOVING WATER
I have two pumps with hoses. One is used to remove dirty water, one to move clean water into the tank.  This way I dont have to worry about contamination and CAN DO BOTH AT SAME TIME. The pump is placed in the tank, so between tanks, I swish it in a container of potassium permanganate laced water. 


The Maxi 1000 has a "nose" and plain old tubing can be attached to this using a ring clamp. The basket keeps inquisitive fish safe.

This is the clamp I use. It comes with cheap shop spot lights and doesn't pinch the hose too badly. 
AGING WATER IN TUBS 
In the bathroom, vat is covered with a towel, the chair is usually in front. 

Rubbermaid containers stack nicely. Pump and long hose stashes inside. Cord is plugged into GFI!
Tubs are put into the bathtub, fill with the shower head clamped to the side. If it overflows, no problem.
OVERFLOW BOX THAT CAN BE USED
FOR A CONTINUOUS DRIP SYSTEM
TANK-PIPE-OVERFLOW BOX

The standpipe can be permanently 
plumbed for a continuous drip system
I would love to credit the artist, but 
forgot who sent this to me. 

The green thing that is the "guts" of the python 
Generally, a faucet adapter is needed, and any hose long enough to reach 
the tanks. Any garden hose will work. A bell is 
usually used on the end for pushing down into
the gravel, altho tanks without gravel dont need a bell.
BUCKET FILTER

A one gallon ice cream bucket and a maxi 1000 powerhead pump. It has a "nose" and a hose can be attached. See above. 
The pump is put in the bottom, gravel is placed around the pump and over the pump (next picture) to form the biofilter. 

The bucket is filled close to the top with gravel.

Over the top of the gravel I put a thick pad of polyester batting.  An additional layer of more open filter material can be put over the top.  The top of the ice cream container can be drilled with holes and put over the top as well. 
GRAVITY FILTER
I found these file hanger boxes on sale and decided they were the right size for filters on the 100 gallon rubbermaid tanks in the basement. I put 3/4 inch holes in the bottom (insert) and put 3/4 inch x 3" PVC outflow pipes in the holes. They leaked a little, but a little silicone would have sealed them. 
The filter is placed on a couple pine (not greenwood) boards across the tank so leaking or overflow goes right back into 
the tank. 

The gravel placed on top of mosquito netting which is folded back over to prevent the gravel from getting crudded up. 
 

A thick pad of filter polyester batting goes over the top to stop the crud. It is easy to wash this pad. The insert shows the hole where the pump hose comes in. To get the water to "spread out" on the surface, I put a "holey" piece of plastic on top of the filter pad. 

More filters can be added to increase efficiency of this kind of filter.