Description of business and summary of significant accounting policies (Details Narrative) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Net loss	$ 1,892,891	$ 1,588,467
Accumulated deficit	16,437,495	14,544,604
Cash FDIC insured amount	0	205,500
Allowance for doubtful accounts	28,558	46,555
Impairment on goodwill	0	0
Impairment on intangible assets	0	0
Advertising and marketing costs	499,441	343,232
Research and development costs	$ 18,393	75,439
Percentage of minimum deposit for custom and large tank fill systems	50.00%
Percentage of restocking fees	15.00%
Customer deposits and unearned revenue	$ 167,534	143,938
Reserve for warranty work	27,651	13,680
Stock-based compensation	$ 962,474	$ 1,154,801
Antidilutive earnings per share, amount	266,722,242	254,577,924
Maximum [Member]
Property, Plant and Equipment [Line Items]
Cash FDIC insured amount	$ 250,000
Property, plant and equipment, useful life	5 years
Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years