Description of business and summary of significant accounting policies (Details Narrative) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Net loss	$ 105,149	$ 240,599
Accumulated deficit	18,031,358	17,927,329
Cash, FDIC Insured Amount	250,000
Cash FDIC excess amount	55,000	85,000
Allowance for doubtful accounts	20,552	23,490
Impairment on goodwill	0	0
Impairment on intangible assets	0	0
Advertising and marketing costs	367,389	427,037
Research and development costs	$ 3,638	9,992
Percentage of minimum deposit for custom and large tank fill systems	50.00%
Percentage of restocking fees	15.00%
Customer deposits	$ 156,036	410,636
Allowance for warranty work	40,468	40,468
Stock-based compensation	$ 208,245	$ 151,492
Antidilutive earnings per share, amount	474,856,113	438,937,858
Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years