Recent content by Cresta

The temperature sensor should be made by Ranco. The manufacturer specifically say to NOT desolder the sensor leads when you replace it. You are supposed to just clip the wires and recrimp with the new sensor. The sensor should cost around $19 at your local refrigeration supply store (stores...

As the title suggests, where is the cheapest to buy a 1/2 or 1/3 horsepower Aqualogic chiller in Southern California? Moderator: If this the wrong location for the question, please accept my apologies.

I'm looking into purchasing a new chiller and noticed that sometimes a higher horsepower chiller actually uses less electricity than a smaller one. Please correct me if I'm mistaken. I'm looking at the specs on the Aqualogic Delta Star 1/3 and 1/2 horsepower chillers. Model DS-4 1/3 hp= 7.2A...

I have two float switches to control top-off level in my sump. One is for the actual level to start the refill pump. The second is a backup to cut the circuit in case the first float switch gets stuck. After using the setup for several months, both switches failed together causing a small...

Please click on the following link for pictures and info of my dosing pump. http://jean.yen.tripod.com/id60.htm

Closeup of the diode

Several pictures of the sensor unit.

As smlacy had mentioned, either option stops the pump. I think I will have to use a trimmer pot instead of a LED. If I enter 10ml/ hr dosing rate on the pump, the sensors will look for "10ml/hr" type of drip. Just adding a LED is very difficult to match it with the required signal. The pot...

I called the manufacturer and they are not of much help. The rep only knew operating and maintainence instructions. What you mentioned regarding "chopping signals" makes sense.... Hopfully others have more ideas on this :(

I want to disable the "drip sensors" on my perisaltic feeder pump. After opening the pump unit, I found two sensors located close to where the drip capsule is at. I'm guessing they are photo transistors(?). The sensors face each other with the drip capsule in the middle. The sesors notify...

Anyone know suppliers for the silicon tubing used on a peristaltic pump? Its the tubing that rests on the rollers. Since its a wear and tear item that needs to be replaced every couple of months to be safe. I bought the pumps from different sellers on eBay. Either they want to sell me...

ReefVan, Wooo!!!! Finally we all get a glimpse of the internal mechanisms of the ReefRat. I'm sure some of the un-imaginative DIYer like myself wouldn't mind finding out how to make the acrylic rod linkage that actually turns the nozzle.....hehe :wink: Ok, ok, now I'm pushing it....haha...

I glued the cracks and tested for cracks......so far it seemed ok. I sure hope I don't have to rebuild it....... casted is so expensive in comparison. If it is so easy for extruded to crack like this....what are they commonly used for? I'm sure it will be glued in projects regardless. If it...

Can't wait to see you post it in detail!!!

Here's a picture of the cracked tube. When I first noticed it...the crack line was about 1" tall from the bottom. After several days of it sitting there under zero load from pressure or water, the crack grew longer to form the "three-way split". Now it crack line has stopped to continue. The...