DIY Pressure Sprayer keg

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Hey folks,

I built a little beer keg out of a pressure sprayer if anyone's interested. Came in more expensive that I'd have liked, but was a fun project and is still cheaper than alternatives.
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It's an 11 litre sprayer, but should hold 12L no probs.

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Here are a few pics of the assembly

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3 45 x 3mm discs are needed. Only 2 shown in this pic.
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Trickiest bit was attaching the posts. Lots of gas PTFE tape required. I had to remove the post after this pic to add the tape.
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Parts list with prices:

Pressure sprayer: £16.99

Pressure Sprayer Bottle With Lance Pump Action Garden Sprayer 2L 3L 5L 8L 11L | eBay

Corny posts: £18.81

https://www.aliexpress.com/item/1005003196449092.html?spm=a2g0o.order_list.0.0.7b4a1802d8PCVJ

¼ inch NPT nuts x 2: £4.19

NPT Locknuts In Brass, American Thread Slim Locknuts in NPT , Made in UK | eBay

45mm x 3mm acrylic discs: £4.97

Translucent Coloured - Acrylic, Perspex, Plastic Circles/Discs Laser Cut Acrylic | eBay

O ring – 37mm x 4mm: £1.95

https://www.ebay.co.uk/itm/362938520339?var=632073711542

Relief valve: £2.63

https://www.aliexpress.com/item/1005004230884987.html?pdp_npi=2@dis!GBP!£0.70!£0.63!!!!!@211b5e2416686237902608954e9c6c!12000028462129888!btf&_t=pvid:6ac22780-253c-438d-9164-be51b212ef4b&afTraceInfo=1005004230884987__pc__pcBridgePPC__xxxxxx__1668623790&spm=a2g0o.ppclist.product.mainProduct

Total cost: £49.54

Let me know if you can think of any ways of making it cheaper. Especially with regards to posts. They were a big expense.

Happy brewing :-)

Floyd
 
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