Electricity breakdown on the pump from the bestway garden jacuzzi

Hello.
First let me say that I don't know much about electricity and I need some advice.
I bought a bestway jacuzzi, a 2000 watt jacuzzi pump connected through a thick 3-wire extension cord from the socket at home. After the first day of use, the wife said that when she puts her hand in the water, it kicks her, I checked the current right after her and I didn't feel anything.
The next day, however, it also started to kick me, no matter what function on the pump was turned on, the water filtration itself, the Jacuzzi option or water heating kicked with electricity every time. I complained about the product over the phone, they said it might be the pump's fault, they ordered me to dispose of it and send a new one.
The situation is the same on the new pump, so they told me to check the grounding issues.
As far as I know, in the whole house, the grounding is connected to the minus, the old installation was installed in the communist era.
Is it possible that it is the fault of the installation so far there have been no problems with the electrical installation in the house ...

Is the extension cord grounded?

Witek005 wrote:

First let me say that I know nothing about electricity

I would advise you to call an electrician friend. You will need a measuring device, and you certainly don't have one. Jacuzi can be your last toy.

What extension cord did you use?
Probably the cheapest two-wire.
What type of installation, no RCD?

Yes, the extension cord is grounded, and the child is sitting in the water, I am standing next to the pool, I put my hand in and kick the electricity quite hard and my son splashes all over the place.

Be sure to sort it out.

Yes, let your son splash, maybe it will be his last splash. Man, it's not fun, it's deadly.
You have to call an electrician and that's it.

Witek005 wrote:

not only that, the child is sitting in the water, I am standing next to the pool, I put my hand in and kick the current quite hard and my son splashes in the best way.

Because it does not close the circuit to the ground.

But that doesn't change the fact that it shouldn't be there. An electrician visit is a must!

Absolutely do not use this Jacuzzi! This can even be fatal (similar to, for example, falling a hair dryer connected to the socket into the bathtub while taking a bath)! There must be something wrongly connected and it should be checked by an electrician-measurement with appropriate instruments. In general, plus and minus refer to direct current, and there is alternating current in the network, i.e. phase and neutral (commonly referred to as zero). Are you sure the neutral (neutral) is grounded? There can be many causes and this must be checked by an electrician with the appropriate measuring equipment. There's an obvious break somewhere. The fact that he doesn't kick his son in the Jacuzzi, and when he stands next to the Jacuzzi and puts his hand in, he "kicks", it probably occurs while standing with his bare feet on the ground - here a man is considered a conductor of electricity to the ground (grounding). It means that the protective grounding is ineffective there.
In general, a jacuzzi must have special protection against electric shock (after all, there is water in such a bathtub and water + electricity is electric shock), which include, among others. residual current device, but not only that, hence it must be taken care of by a professional.

Electrician ordered, I'll let you know what he said, the jacuzzi has obviously been disconnected for a long time and is now a swimming pool..

Unfortunately, a real electrician will turn off the entire installation after the measurements. Janusz electricians will make a bridge in the socket and it will be fine. By the time. Because it will turn out that the power supply network is TT and in the event of a break in N, the water in the pool will not kick but kill. Perversely, I will ask when was the last inspection of the installation done? Should have been done 5 years ago...

Without connecting to electricity, you can use it as much as possible, there is no risk.

There hasn't been a review in 20 years...

Witek005 wrote:

There hasn't been a review in 20 years...

When was the installation installed?
After all, in the 2000s there was a requirement to use an RCD.

So the time has come for him. Presumably you have a lot of first class equipment at home, refrigerator, washing machine, dishwasher, microwave oven, computer. Any of these devices can kill when incorrectly wired. Please provide the type of power supply network and a photo of the residential switchgear

I can't take any pictures until the end of the month, I'm on vacation, the pump came 2 days ago. I arrange everything over the phone with a family member who can only plug the plug into the socket. An electrician ordered for tomorrow will let you know what and how he checked.

The reason for the current breakdown was the connection of the earth to the phase in the socket I was using. The pool is checked by several people and the electrician does not kick anyone.

Well, no comment, a miracle that there was no tragedy, because someone went to jail. Better check the whole installation.

It's a miracle you're still alive.
I don't understand people who use water-electric devices without differential-current protection. Neither high costs nor big philosophy can save lives.

Witek05 wrote:

The reason for the current breakdown was the connection of the earth to the phase in the socket I used.

Massacre.
First, someone performed a reset in the socket (probably without even thinking about the network layout) and then some thoughtless genius "reversed" the wires in the board or in some box.

Prof. SpecMiernik wrote:

Witek05 wrote:

The reason for the current breakdown was the connection of the earth to the phase in the socket I was using.

Massacre.
First, someone performed a reset in the socket (probably without even thinking about the network layout) and then some thoughtless genius "reversed" the wires in the board or in some box.

macabre. It's a miracle there wasn't a tragedy.