If I do a 10 km session it's not uncommon that I end up more than half a meter forwards from where I started. So it's only a tiny move every stroke, but it's definitely there.
I tried to pay attention to what's causing it and it seems to be twofold:
1) At the catch (or the beginning of the drive) there is no real resistance yet from the chain and I think I'm pushing the rower away from under me a little bit every stroke. Of course at the end of the drive I don't apply such a violent force at the machine so it moves forwards a tiny bit.
2) I'm a bit heavy (110 kg) and I think the RowErg flexes just a tiny bit when I'm all in front. This causes a force that pushes the front legs and the back legs away from each other. When I roll back I push more on the back legs (gravity) than the front legs so if the RowErg unflexes during the drive it would mean that the front legs could move a tiny bit forward as well.
This all combined with a slippery (laminate) floor with some dust on it (it's the attic, don't judge me for not vacuuming there every day
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I clean the feet regularly with a damp cloth to clean the dust off but it doesn't make very much of a difference.
Usually it's not a big problem, but when I'm really concentrating and pushing very hard I don't pay any attention to where I'm going. And straight ahead (about a meter from my startingpoint) are the stairs
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I don't think I want to find out what happens if the front of the rower tips over that edge.
I thought of laying a wooden beam in front of the stairs so that would keep me from falling down, but maybe you have any ideas to stop this creeping from happening at all?
For instance I once tried to put a rubbery yoga mat under the rower but that only made it worse
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