Description of business and summary of significant account policies (Details Narrative) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Net Income (Loss) Attributable to Parent	$ 1,588,467	$ 1,351,619
Accumulated deficit	14,544,604	12,956,137
Cash, FDIC Insured Amount	205,500	0
Allowance for doubtful accounts	46,555	16,872
Marketing and Advertising Expense	343,232	154,642
Research and development costs	$ 75,439	115,156
Percentage of minimum deposit for custom and large tank fill systems	50.00%
Percentage of restocking fees	15.00%
Customer deposits and unearned revenue	$ 143,938	20,353
Reserve for warranty work	13,680	13,680
Stock Issued During Period, Value, Employee Benefit Plan	$ 201,952	$ 550,149
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	254,577,924	210,500,305
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