How to Use Bulkhead Fittings and Drill holes in Your DIY Stock Tank Cold Plunge 

Try using you drill in reverse after the bit drills the pilot hole. It should still cut through the polyethylene just fine. IT will take a bit longer but still give a very clean cut and less chance of kicking back as it is not as agressive.

Once you drill in the hole, place the drill in reverse, and the backward motion will not grab and jerk. However, it will create a nice circle that will help once you place it back to cutting direction.

Hey. Read some of the other comments and starting my own project. In his hidsight would you have just used the drain hole that’s already there and drilled one less hole? Or is two necessary?

Thank you for your videos. I bought your framing and plumping plans. I understand that you used the existing drain hole on the 100 gal rubbermaid tank as your outlet to the chiller. Did you use a y connector shutoff valve at the drain hole so the outlet hole can also be used to drain the tub? Hope that makes sense.

I just did mine and tried something different to clean the hole up. If you have a heat gun, pull anything excessive off by hand. After that, use your heat gun to melt up the rest of the little pieces. I tried this aesthetically on the top of the tup where I hit it with my saw and it shaped up nicely so I cleaned this up the same way.

I have a rubbermaid tub just like the one in your vid, and I use the icepod chiller. What do you recommend for insulation around the tub to help it stay cool, and what about the condensation? Thanks

I am thinking about getting the framing plans off your website. I have a 150 gal Rubbermaid tub and wanted to know if the plans are speced for 150 gal. If not what changes would need to be made for 150 gal tub?

The factory out let is plenty! Just fine reducers to fit it. For a outlet. Start drilling a bunch of holes in it, and rein it. Can always run the top hose over the top for a inlet. can use a spray bar, or like a water fountain. Its got factory holes around the top rail. for a mount if you wish

Any reason for the Rubbermaid over the metal? Thanks for the video good stuff!

Thanks for all the great videos! Does it matter how high on the tank the holes are cut for the inlet and outlet? Any reason one should be higher or lower than the other? Thanks!

Thank you for this video. I did do this for my plunge, but I did this only for the water filter, now I purchased an Active aqua .25 chiller and it's set up for a 3/4 hose not 1 inch, do you have any suggestion on how to match this up? I hope I explained myself here...Thank you!

I bought a water chiller that shipped with all the tubing, bulkhead fittings, elbow barb fittings, etc all sized at 3/4" (the Penguin Cold Therapy Chiller). Do you think I need to upgrade these parts to 1"? or am I fine using what they sent with the chiller?

Would you recommend a special hole saw drill bit for a galvanized steel horse trough tank?

just found your channel. thank you! any reason this wouldn't work with the galvanized steel tanks?

What is the reducer you use to go from this bulkhead fitting to the 1-1/4"ID x 1-3/4" OD braided vinyl tubing? Can you provide me with the Menards link? I think I have the rest, brother. Thanks. Just finished the OG 100 gal plunge and this is the last item I need.

Do you think adding some plumbers putty along with the bulk head can ensure enclosure? Bought some cause I was going to use a drainage pipe instead but found this video, would want to make use of the putty if it helps😊

Would placing both holes on the short end of the tank be a mistake? Im thinking this would result in shorter hoses (less condensation/less heat loss), but Im not sure if this would impede proper circulation. Thanks!

I haven't found the video where you talk about exactly where to put the holes. I see the one in this video but where do I put the other hole? (or holes?) I bought the plumbing plans and they don't say exactly

Just put in my bulkheads, It was a good call to replace the factory one. That thing is flimsy as hell. Im waiting on my custom sheet metal drip pan to get fabricated, then ill be on to the running of pipes and insulation. Drip pan will be under stock tank, going to mount my wheels on a slight incline to encourage any condensation caught in the pan to pool up towards the mech area where ill have an access panel on the back to put desiccant. Im planning on insulating the crap out of the tank area so shouldn't be too much sweating. There will also be a drip pan in the mech area that houses the pump and filter. Using some old pc fans to create a airflow in the mech area. I HOPE youll post my build to the blog as theres a lot of extra features the community could get inspiration from :)

I know that center one is your out let but did you say you’re doing 2 inlet holes?? More water pressure since it’s gravity fed??

thanks for this, but how do you connect 1 - 1/4 Tubing (from the intext pump) to that big 1 inch bulk head?

Any reason you went with 1” vs 3/4” bulkheads? Curious because your filter is 3/4”. Thanks!

Thank you very much for your videos. So, the chilled water goes into the top of the tub and you used the tub drain location as your return to the chiller?

can you help me with the location of my inlet (from the filter/sanitation system? does the inlet need to be higher than the level of the water inside my tub?

How did you seal the bulkheads? I keep getting leaks mo matter how much silicone I use

Make your pilot hole without the hole saw on the arbor. After your pilot hole is complete then add the hole saw back onto the arbor. This allows you to slowly move the hole saw in rather than that abrupt start when the pilot bit goes through. 👍🏻

Can you add these bulkhead fittings to the portable material tubs?

I recently bought your video/pdf plans for the plumbing and I’m curious why you made another hole on the bottom right? The drain serves as an outlet and drain and then you have only one inlet which is the middle.

The link you posted for the bulkhead says you need a 2-1/4" hole is that correct or should we go smaller and get the 1-7/8" hole saw

How are you connecting to tubing from the chiller ? Are you using 3/4" tubing or 1"? Would you switch to 3/4" bulkheads if you were using 3/4" tubing? thanks

What size bulk head union for a 100 gallon rubbermaid stock tank drain?

Drilling in reverse will give you a much cleaner cut

Where did you purchase bulkhead fittings?

What size hole do we need to drill?

Anyway to connect the pump to the drain hole on the Rubbermaid?

pro tip, start hole saw in reverse for a few seconds then go back right tighty direction and you shouldn't skip the bit anymore

Link to the bulkheads used?

It appears that all of your EQ uses 3/4" fittings - any reason you use 1" bulkheads instead of 3/4?

Why are you wearing sunglasses to drill a hole in plastic? Lmfao..

Why am I half way through the video and your still talking about the hole saw?

If you have to take 5 mins to explain the process of drilling with a hole saw you have no business to be drilling. I'm surprised this guy knows how to use a drill.