Drilling a hole in my acrylic sump

[Chaetomorpha]

Hi all,

Over a year ago when I got a custom sump made, I had the wrong diameter hole drilled for my pump, all the sudden now I smell it overheating (burning smell). Now obviously I realize its time to increase the side to the correct spec:

Can you all please assist me with two questions:

Can I use a diamond glass hole cutter or do I need to use a acrylic bit?
What size do I need to drill? and what size bulkhead should I purchase? Below is the pump I have been using.


[h=2]Pan World 50PX-X Magnetic Water Pump Information[/h]

Pan World Magnetic Water Pumps are built by a former chief engineer from Iwaki-Japan. It basically has the same specifications such as flow curves, high head pressure and reliability. It also features seal-free bearings and magnetic drive for trouble-free use. These pumps are actually a bit quieter than Iwaki pumps and costs less making it a good or even better alternative. Plus, it comes with a power cord unlike Iwaki pumps.

Warranty: 2-year full manufacturer warranty on parts and labor.


Specifications

• Max Flow: 1110gph
• Max Head: 13ft
• Power: 90W
• Fittings (Inlet/Outlet): 1" MPT / 1" MPT
• Dimensions (L x W x H): 10" x 4" x 5"
• Comparable to Iwaki: 30RLXT

 

[Reefing Madness]

I'd use a Dremmel to take the hole out where you need it. Outline what you need, and just zip it out.
Recommended hole size for 1" bulk head is 1.75"
Lifegard Aquatics

 

[Genesis Corals]

Any bit will work, just go slow. I am sure some bits work better then others, but I have used ones meant for wood before and didn't have a problem. I just went very slowly shaving away at the acrylic.